RAtio and proportion
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RAtio and proportion

[From: ] [author: ] [Date: 11-05-25] [Hit: ]
b is the mean proportional.In your problem,or,or,or,or,......
If x is the mean proportional of 4 and 9, then x could be....._______?

choices:

a)4

b)3

c)6

d)36

didn't kno how to solve this, HOW do you solve this?

-
a:b:c
Here, b is the mean proportional. The formula says b^2=ac

In your problem,
4:x:9
or, x^2=4*9
or, x^2=36
or, x=sqrt(36)
or, x=6

Your answer is c) 6.

Hope this helps!!!
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