Home / 11,560.47-17,340.38-3,127.78

Finding the Fourth Proportional to 11,560.47, 17,340.38 and 3,127.78

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Solution

The fourth proportional to 11,560.47, 17,340.38 and 3,127.78 is: 4,691.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,560.47 : 17,340.38 = 3,127.78 : x
  2. Step 2: Convert to fraction form
    11,560.47/17,340.38 = 3,127.78/x
  3. Step 3: Cross multiply
    11,560.47x = 17,340.38 × 3,127.78
  4. Step 4: Simplify right side
    11,560.47x = 54,236,911.52
  5. Step 5: Solve for x
    x = 54,236,911.52/11,560.47
  6. Step 6: Final answer
    x = 4,691.58

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1.5x scale

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.