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Finding the Third Proportional to 8,889 and 19,122

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Solution

The third proportional to 8,889 and 19,122 is: 41,135.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889 : 19,122 = 19,122 : x
  2. Step 2: Convert to fraction form
    8,889/19,122 = 19,122/x
  3. Step 3: Cross multiply
    8,889x = 19,122 × 19,122
  4. Step 4: Simplify right side
    8,889x = 365,650,884
  5. Step 5: Solve for x
    x = 365,650,884/8,889
  6. Step 6: Final answer
    x = 41,135.21

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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.