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Finding the Third Proportional to 8,865 and 18,641

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Solution

The third proportional to 8,865 and 18,641 is: 39,197.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,865 : 18,641 = 18,641 : x
  2. Step 2: Convert to fraction form
    8,865/18,641 = 18,641/x
  3. Step 3: Cross multiply
    8,865x = 18,641 × 18,641
  4. Step 4: Simplify right side
    8,865x = 347,486,881
  5. Step 5: Solve for x
    x = 347,486,881/8,865
  6. Step 6: Final answer
    x = 39,197.62

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.