Question

3. The mean proportional between the number 9 and 36 is

Answer 1

Answer:

9:x::x:36

product of extreme = 9 * 36 = 324

product of mean = x*x = x square

2√324

=18

Answer 2

Answer:

Let the mean proportional between 9 and 36 be x. Then,

Step-by-step explanation:

9:x::x:36

9×36=x sq.

x sq.=324

x sq.=(18)sq.

x= 18

Hence the mean proportional between 9 and 36 is 18