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Finding the Third Proportional to 9,118 and 19,190

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Solution

The third proportional to 9,118 and 19,190 is: 40,387.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118 : 19,190 = 19,190 : x
  2. Step 2: Convert to fraction form
    9,118/19,190 = 19,190/x
  3. Step 3: Cross multiply
    9,118x = 19,190 × 19,190
  4. Step 4: Simplify right side
    9,118x = 368,256,100
  5. Step 5: Solve for x
    x = 368,256,100/9,118
  6. Step 6: Final answer
    x = 40,387.82

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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.