Home / 8,077.70-12,116.55-4,183.30

Finding the Fourth Proportional to 8,077.70, 12,116.55 and 4,183.30

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Solution

The fourth proportional to 8,077.70, 12,116.55 and 4,183.30 is: 6,274.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,077.70 : 12,116.55 = 4,183.30 : x
  2. Step 2: Convert to fraction form
    8,077.70/12,116.55 = 4,183.30/x
  3. Step 3: Cross multiply
    8,077.70x = 12,116.55 × 4,183.30
  4. Step 4: Simplify right side
    8,077.70x = 50,687,163.62
  5. Step 5: Solve for x
    x = 50,687,163.62/8,077.70
  6. Step 6: Final answer
    x = 6,274.95

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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.