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Finding the Fourth Proportional to 18,657, 25,747.92 and 10,699.56

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Solution

The fourth proportional to 18,657, 25,747.92 and 10,699.56 is: 14,766.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,657 : 25,747.92 = 10,699.56 : x
  2. Step 2: Convert to fraction form
    18,657/25,747.92 = 10,699.56/x
  3. Step 3: Cross multiply
    18,657x = 25,747.92 × 10,699.56
  4. Step 4: Simplify right side
    18,657x = 275,491,414.92
  5. Step 5: Solve for x
    x = 275,491,414.92/18,657
  6. Step 6: Final answer
    x = 14,766.12

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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.