Finding the Fourth Proportional to 10,856.86, 16,305.35 and 6,501.09
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Solution
The fourth proportional to 10,856.86, 16,305.35 and 6,501.09 is: 9,763.65
Step by Step Solution
- Step 1: Write the proportion equation
10,856.86 : 16,305.35 = 6,501.09 : x - Step 2: Convert to fraction form
10,856.86/16,305.35 = 6,501.09/x - Step 3: Cross multiply
10,856.86x = 16,305.35 × 6,501.09 - Step 4: Simplify right side
10,856.86x = 106,002,547.83 - Step 5: Solve for x
x = 106,002,547.83/10,856.86 - Step 6: Final answer
x = 9,763.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.