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Finding the Third Proportional to 3,684 and 8,236.50

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Solution

The third proportional to 3,684 and 8,236.50 is: 18,414.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,684 : 8,236.50 = 8,236.50 : x
  2. Step 2: Convert to fraction form
    3,684/8,236.50 = 8,236.50/x
  3. Step 3: Cross multiply
    3,684x = 8,236.50 × 8,236.50
  4. Step 4: Simplify right side
    3,684x = 67,839,932.25
  5. Step 5: Solve for x
    x = 67,839,932.25/3,684
  6. Step 6: Final answer
    x = 18,414.75

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Why These Related Problems?

These problems maintain the same ratio (2.24) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.