Home / 12,472.97-18,712.52-3,707.87

Finding the Fourth Proportional to 12,472.97, 18,712.52 and 3,707.87

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Solution

The fourth proportional to 12,472.97, 18,712.52 and 3,707.87 is: 5,562.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472.97 : 18,712.52 = 3,707.87 : x
  2. Step 2: Convert to fraction form
    12,472.97/18,712.52 = 3,707.87/x
  3. Step 3: Cross multiply
    12,472.97x = 18,712.52 × 3,707.87
  4. Step 4: Simplify right side
    12,472.97x = 69,383,619.77
  5. Step 5: Solve for x
    x = 69,383,619.77/12,472.97
  6. Step 6: Final answer
    x = 5,562.72

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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.