Home / 15,145.52-22,721.17-5,287.62

Finding the Fourth Proportional to 15,145.52, 22,721.17 and 5,287.62

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Solution

The fourth proportional to 15,145.52, 22,721.17 and 5,287.62 is: 7,932.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,145.52 : 22,721.17 = 5,287.62 : x
  2. Step 2: Convert to fraction form
    15,145.52/22,721.17 = 5,287.62/x
  3. Step 3: Cross multiply
    15,145.52x = 22,721.17 × 5,287.62
  4. Step 4: Simplify right side
    15,145.52x = 120,140,912.92
  5. Step 5: Solve for x
    x = 120,140,912.92/15,145.52
  6. Step 6: Final answer
    x = 7,932.44

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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.