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Finding the Fourth Proportional to 8,331.43, 12,503.31 and 3,948.90

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Solution

The fourth proportional to 8,331.43, 12,503.31 and 3,948.90 is: 5,926.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,331.43 : 12,503.31 = 3,948.90 : x
  2. Step 2: Convert to fraction form
    8,331.43/12,503.31 = 3,948.90/x
  3. Step 3: Cross multiply
    8,331.43x = 12,503.31 × 3,948.90
  4. Step 4: Simplify right side
    8,331.43x = 49,374,320.86
  5. Step 5: Solve for x
    x = 49,374,320.86/8,331.43
  6. Step 6: Final answer
    x = 5,926.27

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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.