Home / 12,961.29-17,914.20-11,425.53

Finding the Fourth Proportional to 12,961.29, 17,914.20 and 11,425.53

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Solution

The fourth proportional to 12,961.29, 17,914.20 and 11,425.53 is: 15,791.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961.29 : 17,914.20 = 11,425.53 : x
  2. Step 2: Convert to fraction form
    12,961.29/17,914.20 = 11,425.53/x
  3. Step 3: Cross multiply
    12,961.29x = 17,914.20 × 11,425.53
  4. Step 4: Simplify right side
    12,961.29x = 204,679,229.53
  5. Step 5: Solve for x
    x = 204,679,229.53/12,961.29
  6. Step 6: Final answer
    x = 15,791.58

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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.