Home / 7,815.87-11,726.52-3,432.72

Finding the Fourth Proportional to 7,815.87, 11,726.52 and 3,432.72

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Solution

The fourth proportional to 7,815.87, 11,726.52 and 3,432.72 is: 5,150.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815.87 : 11,726.52 = 3,432.72 : x
  2. Step 2: Convert to fraction form
    7,815.87/11,726.52 = 3,432.72/x
  3. Step 3: Cross multiply
    7,815.87x = 11,726.52 × 3,432.72
  4. Step 4: Simplify right side
    7,815.87x = 40,253,859.73
  5. Step 5: Solve for x
    x = 40,253,859.73/7,815.87
  6. Step 6: Final answer
    x = 5,150.27

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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.