Home / 8,766.66-13,140.24-6,679.78

Finding the Fourth Proportional to 8,766.66, 13,140.24 and 6,679.78

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Solution

The fourth proportional to 8,766.66, 13,140.24 and 6,679.78 is: 10,012.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,766.66 : 13,140.24 = 6,679.78 : x
  2. Step 2: Convert to fraction form
    8,766.66/13,140.24 = 6,679.78/x
  3. Step 3: Cross multiply
    8,766.66x = 13,140.24 × 6,679.78
  4. Step 4: Simplify right side
    8,766.66x = 87,773,912.35
  5. Step 5: Solve for x
    x = 87,773,912.35/8,766.66
  6. Step 6: Final answer
    x = 10,012.24

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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.