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Finding the Third Proportional to 8,987 and 13,794

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Solution

The third proportional to 8,987 and 13,794 is: 21,172.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987 : 13,794 = 13,794 : x
  2. Step 2: Convert to fraction form
    8,987/13,794 = 13,794/x
  3. Step 3: Cross multiply
    8,987x = 13,794 × 13,794
  4. Step 4: Simplify right side
    8,987x = 190,274,436
  5. Step 5: Solve for x
    x = 190,274,436/8,987
  6. Step 6: Final answer
    x = 21,172.19

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.