Finding the Fourth Proportional to 8,129.92, 11,227.26 and 6,944.08
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Solution
The fourth proportional to 8,129.92, 11,227.26 and 6,944.08 is: 9,589.64
Step by Step Solution
- Step 1: Write the proportion equation
8,129.92 : 11,227.26 = 6,944.08 : x - Step 2: Convert to fraction form
8,129.92/11,227.26 = 6,944.08/x - Step 3: Cross multiply
8,129.92x = 11,227.26 × 6,944.08 - Step 4: Simplify right side
8,129.92x = 77,962,991.62 - Step 5: Solve for x
x = 77,962,991.62/8,129.92 - Step 6: Final answer
x = 9,589.64
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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.