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Finding the Fourth Proportional to 14,614.57, 20,170.07 and 8,242.47

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Solution

The fourth proportional to 14,614.57, 20,170.07 and 8,242.47 is: 11,375.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,614.57 : 20,170.07 = 8,242.47 : x
  2. Step 2: Convert to fraction form
    14,614.57/20,170.07 = 8,242.47/x
  3. Step 3: Cross multiply
    14,614.57x = 20,170.07 × 8,242.47
  4. Step 4: Simplify right side
    14,614.57x = 166,251,196.87
  5. Step 5: Solve for x
    x = 166,251,196.87/14,614.57
  6. Step 6: Final answer
    x = 11,375.72

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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.