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Finding the Fourth Proportional to 8,394.02, 12,591.03 and 3,998.15

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Solution

The fourth proportional to 8,394.02, 12,591.03 and 3,998.15 is: 5,997.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,394.02 : 12,591.03 = 3,998.15 : x
  2. Step 2: Convert to fraction form
    8,394.02/12,591.03 = 3,998.15/x
  3. Step 3: Cross multiply
    8,394.02x = 12,591.03 × 3,998.15
  4. Step 4: Simplify right side
    8,394.02x = 50,340,825.85
  5. Step 5: Solve for x
    x = 50,340,825.85/8,394.02
  6. Step 6: Final answer
    x = 5,997.23

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Half scale
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Double scale
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Similar ratio
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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.