Home / 15,644.87-23,469.26-5,115.95

Finding the Fourth Proportional to 15,644.87, 23,469.26 and 5,115.95

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Solution

The fourth proportional to 15,644.87, 23,469.26 and 5,115.95 is: 7,674.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,644.87 : 23,469.26 = 5,115.95 : x
  2. Step 2: Convert to fraction form
    15,644.87/23,469.26 = 5,115.95/x
  3. Step 3: Cross multiply
    15,644.87x = 23,469.26 × 5,115.95
  4. Step 4: Simplify right side
    15,644.87x = 120,067,560.70
  5. Step 5: Solve for x
    x = 120,067,560.70/15,644.87
  6. Step 6: Final answer
    x = 7,674.56

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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.