Home / 8,778.75-13,170.42-2,622.75

Finding the Fourth Proportional to 8,778.75, 13,170.42 and 2,622.75

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Solution

The fourth proportional to 8,778.75, 13,170.42 and 2,622.75 is: 3,934.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778.75 : 13,170.42 = 2,622.75 : x
  2. Step 2: Convert to fraction form
    8,778.75/13,170.42 = 2,622.75/x
  3. Step 3: Cross multiply
    8,778.75x = 13,170.42 × 2,622.75
  4. Step 4: Simplify right side
    8,778.75x = 34,542,719.06
  5. Step 5: Solve for x
    x = 34,542,719.06/8,778.75
  6. Step 6: Final answer
    x = 3,934.81

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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.