Home / 12,517.96-17,265.14-8,739.88

Finding the Fourth Proportional to 12,517.96, 17,265.14 and 8,739.88

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Solution

The fourth proportional to 12,517.96, 17,265.14 and 8,739.88 is: 12,054.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,517.96 : 17,265.14 = 8,739.88 : x
  2. Step 2: Convert to fraction form
    12,517.96/17,265.14 = 8,739.88/x
  3. Step 3: Cross multiply
    12,517.96x = 17,265.14 × 8,739.88
  4. Step 4: Simplify right side
    12,517.96x = 150,895,251.78
  5. Step 5: Solve for x
    x = 150,895,251.78/12,517.96
  6. Step 6: Final answer
    x = 12,054.30

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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.