Home / 8,311.28-12,481.02-5,555.66

Finding the Fourth Proportional to 8,311.28, 12,481.02 and 5,555.66

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Solution

The fourth proportional to 8,311.28, 12,481.02 and 5,555.66 is: 8,342.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311.28 : 12,481.02 = 5,555.66 : x
  2. Step 2: Convert to fraction form
    8,311.28/12,481.02 = 5,555.66/x
  3. Step 3: Cross multiply
    8,311.28x = 12,481.02 × 5,555.66
  4. Step 4: Simplify right side
    8,311.28x = 69,340,241.17
  5. Step 5: Solve for x
    x = 69,340,241.17/8,311.28
  6. Step 6: Final answer
    x = 8,342.91

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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.