Home / 10,138.38-15,207.49-2,743.59

Finding the Fourth Proportional to 10,138.38, 15,207.49 and 2,743.59

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Solution

The fourth proportional to 10,138.38, 15,207.49 and 2,743.59 is: 4,115.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,138.38 : 15,207.49 = 2,743.59 : x
  2. Step 2: Convert to fraction form
    10,138.38/15,207.49 = 2,743.59/x
  3. Step 3: Cross multiply
    10,138.38x = 15,207.49 × 2,743.59
  4. Step 4: Simplify right side
    10,138.38x = 41,723,117.49
  5. Step 5: Solve for x
    x = 41,723,117.49/10,138.38
  6. Step 6: Final answer
    x = 4,115.36

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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.