Home / 12,591.12-17,367.82-7,551.92

Finding the Fourth Proportional to 12,591.12, 17,367.82 and 7,551.92

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Solution

The fourth proportional to 12,591.12, 17,367.82 and 7,551.92 is: 10,416.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,591.12 : 17,367.82 = 7,551.92 : x
  2. Step 2: Convert to fraction form
    12,591.12/17,367.82 = 7,551.92/x
  3. Step 3: Cross multiply
    12,591.12x = 17,367.82 × 7,551.92
  4. Step 4: Simplify right side
    12,591.12x = 131,160,387.21
  5. Step 5: Solve for x
    x = 131,160,387.21/12,591.12
  6. Step 6: Final answer
    x = 10,416.90

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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.