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Finding the Third Proportional to 8,551 and 13,187

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Solution

The third proportional to 8,551 and 13,187 is: 20,336.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,551 : 13,187 = 13,187 : x
  2. Step 2: Convert to fraction form
    8,551/13,187 = 13,187/x
  3. Step 3: Cross multiply
    8,551x = 13,187 × 13,187
  4. Step 4: Simplify right side
    8,551x = 173,896,969
  5. Step 5: Solve for x
    x = 173,896,969/8,551
  6. Step 6: Final answer
    x = 20,336.45

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.