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Finding the Fourth Proportional to 12,031.17, 18,049.82 and 5,008.85

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Solution

The fourth proportional to 12,031.17, 18,049.82 and 5,008.85 is: 7,514.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,031.17 : 18,049.82 = 5,008.85 : x
  2. Step 2: Convert to fraction form
    12,031.17/18,049.82 = 5,008.85/x
  3. Step 3: Cross multiply
    12,031.17x = 18,049.82 × 5,008.85
  4. Step 4: Simplify right side
    12,031.17x = 90,408,840.91
  5. Step 5: Solve for x
    x = 90,408,840.91/12,031.17
  6. Step 6: Final answer
    x = 7,514.55

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.