Home / 12,425.75-17,147.85-6,760.82

Finding the Fourth Proportional to 12,425.75, 17,147.85 and 6,760.82

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Solution

The fourth proportional to 12,425.75, 17,147.85 and 6,760.82 is: 9,330.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,425.75 : 17,147.85 = 6,760.82 : x
  2. Step 2: Convert to fraction form
    12,425.75/17,147.85 = 6,760.82/x
  3. Step 3: Cross multiply
    12,425.75x = 17,147.85 × 6,760.82
  4. Step 4: Simplify right side
    12,425.75x = 115,933,441.50
  5. Step 5: Solve for x
    x = 115,933,441.50/12,425.75
  6. Step 6: Final answer
    x = 9,330.10

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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.