Home / 10,408.28-15,613.11-3,839.09

Finding the Fourth Proportional to 10,408.28, 15,613.11 and 3,839.09

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Solution

The fourth proportional to 10,408.28, 15,613.11 and 3,839.09 is: 5,758.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,408.28 : 15,613.11 = 3,839.09 : x
  2. Step 2: Convert to fraction form
    10,408.28/15,613.11 = 3,839.09/x
  3. Step 3: Cross multiply
    10,408.28x = 15,613.11 × 3,839.09
  4. Step 4: Simplify right side
    10,408.28x = 59,940,056.40
  5. Step 5: Solve for x
    x = 59,940,056.40/10,408.28
  6. Step 6: Final answer
    x = 5,758.88

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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.