Question

Check whether the two ratios given below are in proportion :

18 : 12, 15 : 10

Answer 1

Given 18 : 12, 15 : 10 

a : b = 18 : 12 

= 6 : 4 

c : d = 15 : 10 

also c : d = 3 : 2 

So, a : b = 3 : 2 

If a : b = c : d, then a, b, c, d are in proportion.

a : b = c : d = 3 : 2 

Therefore, 18 : 12, 15 : 10 are in proportion.