Home / 12,618.97-17,414.57-7,242.39

Finding the Fourth Proportional to 12,618.97, 17,414.57 and 7,242.39

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Solution

The fourth proportional to 12,618.97, 17,414.57 and 7,242.39 is: 9,994.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618.97 : 17,414.57 = 7,242.39 : x
  2. Step 2: Convert to fraction form
    12,618.97/17,414.57 = 7,242.39/x
  3. Step 3: Cross multiply
    12,618.97x = 17,414.57 × 7,242.39
  4. Step 4: Simplify right side
    12,618.97x = 126,123,125.73
  5. Step 5: Solve for x
    x = 126,123,125.73/12,618.97
  6. Step 6: Final answer
    x = 9,994.73

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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.