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Finding the Third Proportional to 8,630 and 18,669

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Solution

The third proportional to 8,630 and 18,669 is: 40,386.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,630 : 18,669 = 18,669 : x
  2. Step 2: Convert to fraction form
    8,630/18,669 = 18,669/x
  3. Step 3: Cross multiply
    8,630x = 18,669 × 18,669
  4. Step 4: Simplify right side
    8,630x = 348,531,561
  5. Step 5: Solve for x
    x = 348,531,561/8,630
  6. Step 6: Final answer
    x = 40,386.04

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.