Home / 12,425.72-17,147.38-6,760.46

Finding the Fourth Proportional to 12,425.72, 17,147.38 and 6,760.46

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Solution

The fourth proportional to 12,425.72, 17,147.38 and 6,760.46 is: 9,329.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,425.72 : 17,147.38 = 6,760.46 : x
  2. Step 2: Convert to fraction form
    12,425.72/17,147.38 = 6,760.46/x
  3. Step 3: Cross multiply
    12,425.72x = 17,147.38 × 6,760.46
  4. Step 4: Simplify right side
    12,425.72x = 115,924,176.59
  5. Step 5: Solve for x
    x = 115,924,176.59/12,425.72
  6. Step 6: Final answer
    x = 9,329.37

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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.