Home / 11,081.30-15,261.09-10,839.38

Finding the Fourth Proportional to 11,081.30, 15,261.09 and 10,839.38

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Solution

The fourth proportional to 11,081.30, 15,261.09 and 10,839.38 is: 14,927.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,081.30 : 15,261.09 = 10,839.38 : x
  2. Step 2: Convert to fraction form
    11,081.30/15,261.09 = 10,839.38/x
  3. Step 3: Cross multiply
    11,081.30x = 15,261.09 × 10,839.38
  4. Step 4: Simplify right side
    11,081.30x = 165,420,753.72
  5. Step 5: Solve for x
    x = 165,420,753.72/11,081.30
  6. Step 6: Final answer
    x = 14,927.92

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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.