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Finding the Third Proportional to 12,800 and 19,214

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Solution

The third proportional to 12,800 and 19,214 is: 28,842.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,800 : 19,214 = 19,214 : x
  2. Step 2: Convert to fraction form
    12,800/19,214 = 19,214/x
  3. Step 3: Cross multiply
    12,800x = 19,214 × 19,214
  4. Step 4: Simplify right side
    12,800x = 369,177,796
  5. Step 5: Solve for x
    x = 369,177,796/12,800
  6. Step 6: Final answer
    x = 28,842.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.