Home / 8,119.17-12,180.56-2,572.85

Finding the Fourth Proportional to 8,119.17, 12,180.56 and 2,572.85

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Solution

The fourth proportional to 8,119.17, 12,180.56 and 2,572.85 is: 3,859.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.17 : 12,180.56 = 2,572.85 : x
  2. Step 2: Convert to fraction form
    8,119.17/12,180.56 = 2,572.85/x
  3. Step 3: Cross multiply
    8,119.17x = 12,180.56 × 2,572.85
  4. Step 4: Simplify right side
    8,119.17x = 31,338,680.03
  5. Step 5: Solve for x
    x = 31,338,680.03/8,119.17
  6. Step 6: Final answer
    x = 3,859.84

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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.