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Finding the Fourth Proportional to 16,218.88, 22,382.09 and 8,766.88

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Solution

The fourth proportional to 16,218.88, 22,382.09 and 8,766.88 is: 12,098.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,218.88 : 22,382.09 = 8,766.88 : x
  2. Step 2: Convert to fraction form
    16,218.88/22,382.09 = 8,766.88/x
  3. Step 3: Cross multiply
    16,218.88x = 22,382.09 × 8,766.88
  4. Step 4: Simplify right side
    16,218.88x = 196,221,097.18
  5. Step 5: Solve for x
    x = 196,221,097.18/16,218.88
  6. Step 6: Final answer
    x = 12,098.31

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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.