Home / 8,076.46-12,112.32-3,144.92

Finding the Fourth Proportional to 8,076.46, 12,112.32 and 3,144.92

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Solution

The fourth proportional to 8,076.46, 12,112.32 and 3,144.92 is: 4,716.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,076.46 : 12,112.32 = 3,144.92 : x
  2. Step 2: Convert to fraction form
    8,076.46/12,112.32 = 3,144.92/x
  3. Step 3: Cross multiply
    8,076.46x = 12,112.32 × 3,144.92
  4. Step 4: Simplify right side
    8,076.46x = 38,092,277.41
  5. Step 5: Solve for x
    x = 38,092,277.41/8,076.46
  6. Step 6: Final answer
    x = 4,716.46

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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.