Home / 10,039.62-13,861.19-6,456.20

Finding the Fourth Proportional to 10,039.62, 13,861.19 and 6,456.20

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Solution

The fourth proportional to 10,039.62, 13,861.19 and 6,456.20 is: 8,913.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,039.62 : 13,861.19 = 6,456.20 : x
  2. Step 2: Convert to fraction form
    10,039.62/13,861.19 = 6,456.20/x
  3. Step 3: Cross multiply
    10,039.62x = 13,861.19 × 6,456.20
  4. Step 4: Simplify right side
    10,039.62x = 89,490,513.29
  5. Step 5: Solve for x
    x = 89,490,513.29/10,039.62
  6. Step 6: Final answer
    x = 8,913.74

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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.