Home / 11,872.20-17,791.86-10,108.02

Finding the Fourth Proportional to 11,872.20, 17,791.86 and 10,108.02

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Solution

The fourth proportional to 11,872.20, 17,791.86 and 10,108.02 is: 15,148.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,872.20 : 17,791.86 = 10,108.02 : x
  2. Step 2: Convert to fraction form
    11,872.20/17,791.86 = 10,108.02/x
  3. Step 3: Cross multiply
    11,872.20x = 17,791.86 × 10,108.02
  4. Step 4: Simplify right side
    11,872.20x = 179,840,476.72
  5. Step 5: Solve for x
    x = 179,840,476.72/11,872.20
  6. Step 6: Final answer
    x = 15,148.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.