Home / 15,140.67-22,711.12-5,279.93

Finding the Fourth Proportional to 15,140.67, 22,711.12 and 5,279.93

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Solution

The fourth proportional to 15,140.67, 22,711.12 and 5,279.93 is: 7,919.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,140.67 : 22,711.12 = 5,279.93 : x
  2. Step 2: Convert to fraction form
    15,140.67/22,711.12 = 5,279.93/x
  3. Step 3: Cross multiply
    15,140.67x = 22,711.12 × 5,279.93
  4. Step 4: Simplify right side
    15,140.67x = 119,913,123.82
  5. Step 5: Solve for x
    x = 119,913,123.82/15,140.67
  6. Step 6: Final answer
    x = 7,919.94

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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.