Home / 11,178.48-16,770.17-3,387.90

Finding the Fourth Proportional to 11,178.48, 16,770.17 and 3,387.90

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Solution

The fourth proportional to 11,178.48, 16,770.17 and 3,387.90 is: 5,082.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.48 : 16,770.17 = 3,387.90 : x
  2. Step 2: Convert to fraction form
    11,178.48/16,770.17 = 3,387.90/x
  3. Step 3: Cross multiply
    11,178.48x = 16,770.17 × 3,387.90
  4. Step 4: Simplify right side
    11,178.48x = 56,815,658.94
  5. Step 5: Solve for x
    x = 56,815,658.94/11,178.48
  6. Step 6: Final answer
    x = 5,082.59

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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.