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Finding the Fourth Proportional to 10,269.82, 15,402.90 and 4,426.90

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Solution

The fourth proportional to 10,269.82, 15,402.90 and 4,426.90 is: 6,639.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,269.82 : 15,402.90 = 4,426.90 : x
  2. Step 2: Convert to fraction form
    10,269.82/15,402.90 = 4,426.90/x
  3. Step 3: Cross multiply
    10,269.82x = 15,402.90 × 4,426.90
  4. Step 4: Simplify right side
    10,269.82x = 68,187,098.01
  5. Step 5: Solve for x
    x = 68,187,098.01/10,269.82
  6. Step 6: Final answer
    x = 6,639.56

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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.