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Finding the Fourth Proportional to 18,633, 25,700.52 and 12,257.58

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Solution

The fourth proportional to 18,633, 25,700.52 and 12,257.58 is: 16,906.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,633 : 25,700.52 = 12,257.58 : x
  2. Step 2: Convert to fraction form
    18,633/25,700.52 = 12,257.58/x
  3. Step 3: Cross multiply
    18,633x = 25,700.52 × 12,257.58
  4. Step 4: Simplify right side
    18,633x = 315,026,179.94
  5. Step 5: Solve for x
    x = 315,026,179.94/18,633
  6. Step 6: Final answer
    x = 16,906.90

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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.