Home / 18,227.36-25,149.12-11,151.20

Finding the Fourth Proportional to 18,227.36, 25,149.12 and 11,151.20

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Solution

The fourth proportional to 18,227.36, 25,149.12 and 11,151.20 is: 15,385.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,227.36 : 25,149.12 = 11,151.20 : x
  2. Step 2: Convert to fraction form
    18,227.36/25,149.12 = 11,151.20/x
  3. Step 3: Cross multiply
    18,227.36x = 25,149.12 × 11,151.20
  4. Step 4: Simplify right side
    18,227.36x = 280,442,866.94
  5. Step 5: Solve for x
    x = 280,442,866.94/18,227.36
  6. Step 6: Final answer
    x = 15,385.82

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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.