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Finding the Third Proportional to 3,867.75 and 8,196.19

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Solution

The third proportional to 3,867.75 and 8,196.19 is: 17,368.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.75 : 8,196.19 = 8,196.19 : x
  2. Step 2: Convert to fraction form
    3,867.75/8,196.19 = 8,196.19/x
  3. Step 3: Cross multiply
    3,867.75x = 8,196.19 × 8,196.19
  4. Step 4: Simplify right side
    3,867.75x = 67,177,489.54
  5. Step 5: Solve for x
    x = 67,177,489.54/3,867.75
  6. Step 6: Final answer
    x = 17,368.62

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.