Home / 12,839.94-17,651.08-11,040.82

Finding the Fourth Proportional to 12,839.94, 17,651.08 and 11,040.82

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Solution

The fourth proportional to 12,839.94, 17,651.08 and 11,040.82 is: 15,177.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,839.94 : 17,651.08 = 11,040.82 : x
  2. Step 2: Convert to fraction form
    12,839.94/17,651.08 = 11,040.82/x
  3. Step 3: Cross multiply
    12,839.94x = 17,651.08 × 11,040.82
  4. Step 4: Simplify right side
    12,839.94x = 194,882,397.09
  5. Step 5: Solve for x
    x = 194,882,397.09/12,839.94
  6. Step 6: Final answer
    x = 15,177.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.