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Finding the Fourth Proportional to 12,672.57, 17,489.22 and 7,367.73

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Solution

The fourth proportional to 12,672.57, 17,489.22 and 7,367.73 is: 10,168.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,672.57 : 17,489.22 = 7,367.73 : x
  2. Step 2: Convert to fraction form
    12,672.57/17,489.22 = 7,367.73/x
  3. Step 3: Cross multiply
    12,672.57x = 17,489.22 × 7,367.73
  4. Step 4: Simplify right side
    12,672.57x = 128,855,850.87
  5. Step 5: Solve for x
    x = 128,855,850.87/12,672.57
  6. Step 6: Final answer
    x = 10,168.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.