Home / 12,425.93-17,142.14-7,387.29

Finding the Fourth Proportional to 12,425.93, 17,142.14 and 7,387.29

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Solution

The fourth proportional to 12,425.93, 17,142.14 and 7,387.29 is: 10,191.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,425.93 : 17,142.14 = 7,387.29 : x
  2. Step 2: Convert to fraction form
    12,425.93/17,142.14 = 7,387.29/x
  3. Step 3: Cross multiply
    12,425.93x = 17,142.14 × 7,387.29
  4. Step 4: Simplify right side
    12,425.93x = 126,633,922.46
  5. Step 5: Solve for x
    x = 126,633,922.46/12,425.93
  6. Step 6: Final answer
    x = 10,191.11

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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.