Home / 18,943.92-28,417.50-7,250.76

Finding the Fourth Proportional to 18,943.92, 28,417.50 and 7,250.76

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Solution

The fourth proportional to 18,943.92, 28,417.50 and 7,250.76 is: 10,876.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,943.92 : 28,417.50 = 7,250.76 : x
  2. Step 2: Convert to fraction form
    18,943.92/28,417.50 = 7,250.76/x
  3. Step 3: Cross multiply
    18,943.92x = 28,417.50 × 7,250.76
  4. Step 4: Simplify right side
    18,943.92x = 206,048,472.30
  5. Step 5: Solve for x
    x = 206,048,472.30/18,943.92
  6. Step 6: Final answer
    x = 10,876.76

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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.