Home / 12,251.44-18,377.61-7,518.61

Finding the Fourth Proportional to 12,251.44, 18,377.61 and 7,518.61

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Solution

The fourth proportional to 12,251.44, 18,377.61 and 7,518.61 is: 11,278.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251.44 : 18,377.61 = 7,518.61 : x
  2. Step 2: Convert to fraction form
    12,251.44/18,377.61 = 7,518.61/x
  3. Step 3: Cross multiply
    12,251.44x = 18,377.61 × 7,518.61
  4. Step 4: Simplify right side
    12,251.44x = 138,174,082.32
  5. Step 5: Solve for x
    x = 138,174,082.32/12,251.44
  6. Step 6: Final answer
    x = 11,278.19

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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.