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Finding the Fourth Proportional to 16,218.38, 22,381.39 and 8,766.38

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Solution

The fourth proportional to 16,218.38, 22,381.39 and 8,766.38 is: 12,097.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,218.38 : 22,381.39 = 8,766.38 : x
  2. Step 2: Convert to fraction form
    16,218.38/22,381.39 = 8,766.38/x
  3. Step 3: Cross multiply
    16,218.38x = 22,381.39 × 8,766.38
  4. Step 4: Simplify right side
    16,218.38x = 196,203,769.67
  5. Step 5: Solve for x
    x = 196,203,769.67/16,218.38
  6. Step 6: Final answer
    x = 12,097.62

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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.