Question

Find the fourth proportinal to 19,1,11

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Answer 1

Step-by-step explanation:

The fourth proportional is 22.

Step-by-step explanation:

To find : The fourth proportional of 6,11 and 12 is ?

Solution :

Let the fourth proportional be 'x'.

So, 6 : 11 :: 12 : x6:11::12:x

When a:b::c:da:b::c:d are in proportion then \frac{a}{b}=\frac{c}{d}ba=dc

i.e. \frac{6}{11}=\frac{12}{x}116=x12

x=\frac{12\times 11}{6}x=612×11

x=2\times 11x=2×11

x=22x=22

Therefore, the fourth proportional is 22.

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Answer 2

Answer:

0.5789 Or 11/19

Step-by-step explanation:

we know that product of means = product of extremes

So let fourth propotinal be X

So 19*X=1*11

X=11/19

or it can be written as 0.5789

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