Finding the Fourth Proportional to 19,726.59, 27,221.91 and 10,774.09
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Solution
The fourth proportional to 19,726.59, 27,221.91 and 10,774.09 is: 14,867.82
Step by Step Solution
- Step 1: Write the proportion equation
19,726.59 : 27,221.91 = 10,774.09 : x - Step 2: Convert to fraction form
19,726.59/27,221.91 = 10,774.09/x - Step 3: Cross multiply
19,726.59x = 27,221.91 × 10,774.09 - Step 4: Simplify right side
19,726.59x = 293,291,308.31 - Step 5: Solve for x
x = 293,291,308.31/19,726.59 - Step 6: Final answer
x = 14,867.82
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.