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Finding the Third Proportional to 8,890 and 18,996

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Solution

The third proportional to 8,890 and 18,996 is: 40,590.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,890 : 18,996 = 18,996 : x
  2. Step 2: Convert to fraction form
    8,890/18,996 = 18,996/x
  3. Step 3: Cross multiply
    8,890x = 18,996 × 18,996
  4. Step 4: Simplify right side
    8,890x = 360,848,016
  5. Step 5: Solve for x
    x = 360,848,016/8,890
  6. Step 6: Final answer
    x = 40,590.33

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.