Home / 12,601.28-17,382.12-8,117.94

Finding the Fourth Proportional to 12,601.28, 17,382.12 and 8,117.94

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Solution

The fourth proportional to 12,601.28, 17,382.12 and 8,117.94 is: 11,197.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,601.28 : 17,382.12 = 8,117.94 : x
  2. Step 2: Convert to fraction form
    12,601.28/17,382.12 = 8,117.94/x
  3. Step 3: Cross multiply
    12,601.28x = 17,382.12 × 8,117.94
  4. Step 4: Simplify right side
    12,601.28x = 141,107,007.23
  5. Step 5: Solve for x
    x = 141,107,007.23/12,601.28
  6. Step 6: Final answer
    x = 11,197.83

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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.