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Finding the Third Proportional to 6,819 and 14,379

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Solution

The third proportional to 6,819 and 14,379 is: 30,320.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,819 : 14,379 = 14,379 : x
  2. Step 2: Convert to fraction form
    6,819/14,379 = 14,379/x
  3. Step 3: Cross multiply
    6,819x = 14,379 × 14,379
  4. Step 4: Simplify right side
    6,819x = 206,755,641
  5. Step 5: Solve for x
    x = 206,755,641/6,819
  6. Step 6: Final answer
    x = 30,320.52

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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.