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Finding the Fourth Proportional to 12,002.70, 18,004.05 and 7,337.10

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Solution

The fourth proportional to 12,002.70, 18,004.05 and 7,337.10 is: 11,005.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,002.70 : 18,004.05 = 7,337.10 : x
  2. Step 2: Convert to fraction form
    12,002.70/18,004.05 = 7,337.10/x
  3. Step 3: Cross multiply
    12,002.70x = 18,004.05 × 7,337.10
  4. Step 4: Simplify right side
    12,002.70x = 132,097,515.26
  5. Step 5: Solve for x
    x = 132,097,515.26/12,002.70
  6. Step 6: Final answer
    x = 11,005.65

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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.