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Finding the Fourth Proportional to 11,079.80, 15,259.02 and 10,837.88

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Solution

The fourth proportional to 11,079.80, 15,259.02 and 10,837.88 is: 14,925.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,079.80 : 15,259.02 = 10,837.88 : x
  2. Step 2: Convert to fraction form
    11,079.80/15,259.02 = 10,837.88/x
  3. Step 3: Cross multiply
    11,079.80x = 15,259.02 × 10,837.88
  4. Step 4: Simplify right side
    11,079.80x = 165,375,427.68
  5. Step 5: Solve for x
    x = 165,375,427.68/11,079.80
  6. Step 6: Final answer
    x = 14,925.85

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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.