Home / 18,229.50-25,149.51-11,512.62

Finding the Fourth Proportional to 18,229.50, 25,149.51 and 11,512.62

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Solution

The fourth proportional to 18,229.50, 25,149.51 and 11,512.62 is: 15,882.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,229.50 : 25,149.51 = 11,512.62 : x
  2. Step 2: Convert to fraction form
    18,229.50/25,149.51 = 11,512.62/x
  3. Step 3: Cross multiply
    18,229.50x = 25,149.51 × 11,512.62
  4. Step 4: Simplify right side
    18,229.50x = 289,536,751.82
  5. Step 5: Solve for x
    x = 289,536,751.82/18,229.50
  6. Step 6: Final answer
    x = 15,882.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.