Home / 8,119.91-12,179.07-5,504.22

Finding the Fourth Proportional to 8,119.91, 12,179.07 and 5,504.22

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Solution

The fourth proportional to 8,119.91, 12,179.07 and 5,504.22 is: 8,255.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.91 : 12,179.07 = 5,504.22 : x
  2. Step 2: Convert to fraction form
    8,119.91/12,179.07 = 5,504.22/x
  3. Step 3: Cross multiply
    8,119.91x = 12,179.07 × 5,504.22
  4. Step 4: Simplify right side
    8,119.91x = 67,036,258.57
  5. Step 5: Solve for x
    x = 67,036,258.57/8,119.91
  6. Step 6: Final answer
    x = 8,255.79

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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.