Home / 10,127.25-15,191.79-2,731.77

Finding the Fourth Proportional to 10,127.25, 15,191.79 and 2,731.77

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Solution

The fourth proportional to 10,127.25, 15,191.79 and 2,731.77 is: 4,097.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,127.25 : 15,191.79 = 2,731.77 : x
  2. Step 2: Convert to fraction form
    10,127.25/15,191.79 = 2,731.77/x
  3. Step 3: Cross multiply
    10,127.25x = 15,191.79 × 2,731.77
  4. Step 4: Simplify right side
    10,127.25x = 41,500,476.17
  5. Step 5: Solve for x
    x = 41,500,476.17/10,127.25
  6. Step 6: Final answer
    x = 4,097.90

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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.