Home / 10,279.69-15,419.49-2,488.48

Finding the Fourth Proportional to 10,279.69, 15,419.49 and 2,488.48

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Solution

The fourth proportional to 10,279.69, 15,419.49 and 2,488.48 is: 3,732.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279.69 : 15,419.49 = 2,488.48 : x
  2. Step 2: Convert to fraction form
    10,279.69/15,419.49 = 2,488.48/x
  3. Step 3: Cross multiply
    10,279.69x = 15,419.49 × 2,488.48
  4. Step 4: Simplify right side
    10,279.69x = 38,371,092.48
  5. Step 5: Solve for x
    x = 38,371,092.48/10,279.69
  6. Step 6: Final answer
    x = 3,732.71

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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.