Home / 10,129.14-15,191.97-2,731.95

Finding the Fourth Proportional to 10,129.14, 15,191.97 and 2,731.95

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Solution

The fourth proportional to 10,129.14, 15,191.97 and 2,731.95 is: 4,097.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.14 : 15,191.97 = 2,731.95 : x
  2. Step 2: Convert to fraction form
    10,129.14/15,191.97 = 2,731.95/x
  3. Step 3: Cross multiply
    10,129.14x = 15,191.97 × 2,731.95
  4. Step 4: Simplify right side
    10,129.14x = 41,503,702.44
  5. Step 5: Solve for x
    x = 41,503,702.44/10,129.14
  6. Step 6: Final answer
    x = 4,097.46

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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.