Home / 16,979.87-23,431.17-9,425.75

Finding the Fourth Proportional to 16,979.87, 23,431.17 and 9,425.75

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Solution

The fourth proportional to 16,979.87, 23,431.17 and 9,425.75 is: 13,006.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,979.87 : 23,431.17 = 9,425.75 : x
  2. Step 2: Convert to fraction form
    16,979.87/23,431.17 = 9,425.75/x
  3. Step 3: Cross multiply
    16,979.87x = 23,431.17 × 9,425.75
  4. Step 4: Simplify right side
    16,979.87x = 220,856,350.63
  5. Step 5: Solve for x
    x = 220,856,350.63/16,979.87
  6. Step 6: Final answer
    x = 13,006.95

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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.