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Finding the Fourth Proportional to 8,340.57, 12,493.85 and 3,944.70

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Solution

The fourth proportional to 8,340.57, 12,493.85 and 3,944.70 is: 5,909.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.57 : 12,493.85 = 3,944.70 : x
  2. Step 2: Convert to fraction form
    8,340.57/12,493.85 = 3,944.70/x
  3. Step 3: Cross multiply
    8,340.57x = 12,493.85 × 3,944.70
  4. Step 4: Simplify right side
    8,340.57x = 49,284,470.37
  5. Step 5: Solve for x
    x = 49,284,470.37/8,340.57
  6. Step 6: Final answer
    x = 5,909.01

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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.