Question

Find the mean proportional between 9 and 16

Answer 1

Answer:

12

Step-by-step explanation:

let the mean proportion be x

So, the ratio is 9 : x :: x : 16

Product of mean = product of extreme.

So, 9*16 = x*x

= 144=x^2

x=√ 144

 = 12

Answer 2

Answer:

12

Step-by-step explanation:

Let the mean proportion be x

9:x::x:16

= 9 × 16 = X × X

= 144 = x²

= x = √ 144

= 12

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