It can be written as a : b = c : d or a : b :: c : d
The first and the fourth quantities are called the ‘extremes’ while the second and the third quantities are called the “means”.
In a proportion, the product of the extremes is equal to the product of the means.
11 × 9 = 12v
99 = 12v v = 8.25
Example: Mary bought one bulb of elephant garlic for $2. How many bulbs can Mofor buy if he has $10?
Let us assume that Mofor can buy x bulbs for $10.
Ratio of bulbs = Ratio of costs
1 : x = 2 : 10 implies 2x = 10
So, x = 5
- Solve the proportion, 2 : 8 = 8 : n
- Jaidee reduced the size of a frame to a height of 5 inches. What is the new width if it was originally 49 in wide and 35 in tall?One package of basil costs $
- One package of basil costs $How may packages of basil can be bought for $6?
- 15 bunches of seedless black grapes cost $36.How many bunches can you buy for $12?
- 7 in
Give Your Child The eTutorWorld Advantage
Research has proven that personal online tutoring not just cements school learning, it helps build student confidence. Come to eTutorWorld for Expert Tutors and best K-12 Online Tutoring Services in the comfort and safety of your home at an affordable cost. Find a tutor online for Grade 3-12 Math, Science and English subjects and AP, SAT, SSAT and SCAT Test Prep help and test practice. Get free printable math and science worksheets in pdf format and SCAT Practice Tests. Sign up for a Free Trial Lesson Today!
© 2018 eTutorWorld - Online Tutoring and Test Prep | All rights reserved