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Finding the Fourth Proportional to 8,239.97, 12,363.18 and 3,619.73

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Solution

The fourth proportional to 8,239.97, 12,363.18 and 3,619.73 is: 5,431.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,239.97 : 12,363.18 = 3,619.73 : x
  2. Step 2: Convert to fraction form
    8,239.97/12,363.18 = 3,619.73/x
  3. Step 3: Cross multiply
    8,239.97x = 12,363.18 × 3,619.73
  4. Step 4: Simplify right side
    8,239.97x = 44,751,311.73
  5. Step 5: Solve for x
    x = 44,751,311.73/8,239.97
  6. Step 6: Final answer
    x = 5,431.01

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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.