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Finding the Third Proportional to 8,556 and 13,401

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Solution

The third proportional to 8,556 and 13,401 is: 20,989.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,556 : 13,401 = 13,401 : x
  2. Step 2: Convert to fraction form
    8,556/13,401 = 13,401/x
  3. Step 3: Cross multiply
    8,556x = 13,401 × 13,401
  4. Step 4: Simplify right side
    8,556x = 179,586,801
  5. Step 5: Solve for x
    x = 179,586,801/8,556
  6. Step 6: Final answer
    x = 20,989.57

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.