Question

a) Find the
fourth
with proportional to 3, 13 and 12.
​

Answer 1

Answer:

Ur Ans

Let the 4th proportion be x

So , 3 , 13 , 12 , x

Product of extreme = Product of mean

3 × x = 13 × 12

x = 13 × 12 ÷ 3

x = 52

hope it will help you