Home / 10,481.04-15,721.56-2,689.85

Finding the Fourth Proportional to 10,481.04, 15,721.56 and 2,689.85

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Solution

The fourth proportional to 10,481.04, 15,721.56 and 2,689.85 is: 4,034.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,481.04 : 15,721.56 = 2,689.85 : x
  2. Step 2: Convert to fraction form
    10,481.04/15,721.56 = 2,689.85/x
  3. Step 3: Cross multiply
    10,481.04x = 15,721.56 × 2,689.85
  4. Step 4: Simplify right side
    10,481.04x = 42,288,677.47
  5. Step 5: Solve for x
    x = 42,288,677.47/10,481.04
  6. Step 6: Final answer
    x = 4,034.78

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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.