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Finding the Fourth Proportional to 12,572.97, 18,859.11 and 4,252.92

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Solution

The fourth proportional to 12,572.97, 18,859.11 and 4,252.92 is: 6,379.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,572.97 : 18,859.11 = 4,252.92 : x
  2. Step 2: Convert to fraction form
    12,572.97/18,859.11 = 4,252.92/x
  3. Step 3: Cross multiply
    12,572.97x = 18,859.11 × 4,252.92
  4. Step 4: Simplify right side
    12,572.97x = 80,206,286.10
  5. Step 5: Solve for x
    x = 80,206,286.10/12,572.97
  6. Step 6: Final answer
    x = 6,379.26

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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.