Home / 12,517.13-18,777.77-5,939.73

Finding the Fourth Proportional to 12,517.13, 18,777.77 and 5,939.73

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Solution

The fourth proportional to 12,517.13, 18,777.77 and 5,939.73 is: 8,910.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,517.13 : 18,777.77 = 5,939.73 : x
  2. Step 2: Convert to fraction form
    12,517.13/18,777.77 = 5,939.73/x
  3. Step 3: Cross multiply
    12,517.13x = 18,777.77 × 5,939.73
  4. Step 4: Simplify right side
    12,517.13x = 111,534,760.21
  5. Step 5: Solve for x
    x = 111,534,760.21/12,517.13
  6. Step 6: Final answer
    x = 8,910.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.