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Finding the Fourth Proportional to 12,060, 18,089.82 and 4,266.90

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Solution

The fourth proportional to 12,060, 18,089.82 and 4,266.90 is: 6,400.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,060 : 18,089.82 = 4,266.90 : x
  2. Step 2: Convert to fraction form
    12,060/18,089.82 = 4,266.90/x
  3. Step 3: Cross multiply
    12,060x = 18,089.82 × 4,266.90
  4. Step 4: Simplify right side
    12,060x = 77,187,452.96
  5. Step 5: Solve for x
    x = 77,187,452.96/12,060
  6. Step 6: Final answer
    x = 6,400.29

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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.