Home / 12,505.20-17,257.17-6,839.83

Finding the Fourth Proportional to 12,505.20, 17,257.17 and 6,839.83

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Solution

The fourth proportional to 12,505.20, 17,257.17 and 6,839.83 is: 9,438.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,505.20 : 17,257.17 = 6,839.83 : x
  2. Step 2: Convert to fraction form
    12,505.20/17,257.17 = 6,839.83/x
  3. Step 3: Cross multiply
    12,505.20x = 17,257.17 × 6,839.83
  4. Step 4: Simplify right side
    12,505.20x = 118,036,109.08
  5. Step 5: Solve for x
    x = 118,036,109.08/12,505.20
  6. Step 6: Final answer
    x = 9,438.96

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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.