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Finding the Third Proportional to 8,658 and 18,237

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Solution

The third proportional to 8,658 and 18,237 is: 38,413.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,658 : 18,237 = 18,237 : x
  2. Step 2: Convert to fraction form
    8,658/18,237 = 18,237/x
  3. Step 3: Cross multiply
    8,658x = 18,237 × 18,237
  4. Step 4: Simplify right side
    8,658x = 332,588,169
  5. Step 5: Solve for x
    x = 332,588,169/8,658
  6. Step 6: Final answer
    x = 38,413.97

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.