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Finding the Fourth Proportional to 16,318.88, 22,520.18 and 8,866.88

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Solution

The fourth proportional to 16,318.88, 22,520.18 and 8,866.88 is: 12,236.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,318.88 : 22,520.18 = 8,866.88 : x
  2. Step 2: Convert to fraction form
    16,318.88/22,520.18 = 8,866.88/x
  3. Step 3: Cross multiply
    16,318.88x = 22,520.18 × 8,866.88
  4. Step 4: Simplify right side
    16,318.88x = 199,683,643.20
  5. Step 5: Solve for x
    x = 199,683,643.20/16,318.88
  6. Step 6: Final answer
    x = 12,236.36

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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.