Find the mean proportional between $6$ and $24$ .

16

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36

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8

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12

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Solution

The correct option is D $12$
Here the ratio of first quantity to the second $= 6 : 12 = 1 : 2$

Here the ratio of second quantity to the third $= 12 : 24 = 1 : 2.$

We see that $6 : 12 = 12 : 24$

Thus $6, 12, 24$ are in continued proportion.

The second quality is $12$ is the mean proportional and third quantity $24$ is the third proportional.

So, the answer is $12.$

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Similar questions

Find the mean proportional between:
$(i)$ $6$ and $24$
$(i i)$ $3$ and $27$
$(i i i)$ $0.4$ and $0.9$

16

4

16

Class	0-4	4-8	8-12	12-16	16-20	20-24	24-28	28-32	32-36
Frequency	6	8	17	23	16	15	-	4	3

(1) 6

24

(2) 360 a^{4}

250 a^{2} b^{2}

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