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Finding the Third Proportional to 9,440 and 18,638

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Solution

The third proportional to 9,440 and 18,638 is: 36,798.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,440 : 18,638 = 18,638 : x
  2. Step 2: Convert to fraction form
    9,440/18,638 = 18,638/x
  3. Step 3: Cross multiply
    9,440x = 18,638 × 18,638
  4. Step 4: Simplify right side
    9,440x = 347,375,044
  5. Step 5: Solve for x
    x = 347,375,044/9,440
  6. Step 6: Final answer
    x = 36,798.20

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.