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Finding the Third Proportional to 8,286 and 17,784

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Solution

The third proportional to 8,286 and 17,784 is: 38,169.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,286 : 17,784 = 17,784 : x
  2. Step 2: Convert to fraction form
    8,286/17,784 = 17,784/x
  3. Step 3: Cross multiply
    8,286x = 17,784 × 17,784
  4. Step 4: Simplify right side
    8,286x = 316,270,656
  5. Step 5: Solve for x
    x = 316,270,656/8,286
  6. Step 6: Final answer
    x = 38,169.28

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.