Home / 8,119.32-12,179.43-3,962.88

Finding the Fourth Proportional to 8,119.32, 12,179.43 and 3,962.88

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Solution

The fourth proportional to 8,119.32, 12,179.43 and 3,962.88 is: 5,944.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.32 : 12,179.43 = 3,962.88 : x
  2. Step 2: Convert to fraction form
    8,119.32/12,179.43 = 3,962.88/x
  3. Step 3: Cross multiply
    8,119.32x = 12,179.43 × 3,962.88
  4. Step 4: Simplify right side
    8,119.32x = 48,265,619.56
  5. Step 5: Solve for x
    x = 48,265,619.56/8,119.32
  6. Step 6: Final answer
    x = 5,944.54

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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.