Home / 8,076.15-12,117.31-3,149.22

Finding the Fourth Proportional to 8,076.15, 12,117.31 and 3,149.22

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Solution

The fourth proportional to 8,076.15, 12,117.31 and 3,149.22 is: 4,725.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,076.15 : 12,117.31 = 3,149.22 : x
  2. Step 2: Convert to fraction form
    8,076.15/12,117.31 = 3,149.22/x
  3. Step 3: Cross multiply
    8,076.15x = 12,117.31 × 3,149.22
  4. Step 4: Simplify right side
    8,076.15x = 38,160,067.13
  5. Step 5: Solve for x
    x = 38,160,067.13/8,076.15
  6. Step 6: Final answer
    x = 4,725.03

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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.