Home / 12,371.31-17,067.66-9,148.86

Finding the Fourth Proportional to 12,371.31, 17,067.66 and 9,148.86

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Solution

The fourth proportional to 12,371.31, 17,067.66 and 9,148.86 is: 12,621.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,371.31 : 17,067.66 = 9,148.86 : x
  2. Step 2: Convert to fraction form
    12,371.31/17,067.66 = 9,148.86/x
  3. Step 3: Cross multiply
    12,371.31x = 17,067.66 × 9,148.86
  4. Step 4: Simplify right side
    12,371.31x = 156,149,631.87
  5. Step 5: Solve for x
    x = 156,149,631.87/12,371.31
  6. Step 6: Final answer
    x = 12,621.92

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1.5x scale

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.