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Finding the Fourth Proportional to 16,640.10, 22,927.86 and 12,863.88

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Solution

The fourth proportional to 16,640.10, 22,927.86 and 12,863.88 is: 17,724.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,640.10 : 22,927.86 = 12,863.88 : x
  2. Step 2: Convert to fraction form
    16,640.10/22,927.86 = 12,863.88/x
  3. Step 3: Cross multiply
    16,640.10x = 22,927.86 × 12,863.88
  4. Step 4: Simplify right side
    16,640.10x = 294,941,239.70
  5. Step 5: Solve for x
    x = 294,941,239.70/16,640.10
  6. Step 6: Final answer
    x = 17,724.73

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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.