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Finding the Fourth Proportional to 8,093.28, 12,150.80 and 4,200.80

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Solution

The fourth proportional to 8,093.28, 12,150.80 and 4,200.80 is: 6,306.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,093.28 : 12,150.80 = 4,200.80 : x
  2. Step 2: Convert to fraction form
    8,093.28/12,150.80 = 4,200.80/x
  3. Step 3: Cross multiply
    8,093.28x = 12,150.80 × 4,200.80
  4. Step 4: Simplify right side
    8,093.28x = 51,043,080.64
  5. Step 5: Solve for x
    x = 51,043,080.64/8,093.28
  6. Step 6: Final answer
    x = 6,306.85

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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.