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Finding the Third Proportional to 12,819 and 27,153

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Solution

The third proportional to 12,819 and 27,153 is: 57,515.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,819 : 27,153 = 27,153 : x
  2. Step 2: Convert to fraction form
    12,819/27,153 = 27,153/x
  3. Step 3: Cross multiply
    12,819x = 27,153 × 27,153
  4. Step 4: Simplify right side
    12,819x = 737,285,409
  5. Step 5: Solve for x
    x = 737,285,409/12,819
  6. Step 6: Final answer
    x = 57,515.05

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.