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Finding the Third Proportional to 5,366 and 12,647

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Solution

The third proportional to 5,366 and 12,647 is: 29,807.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,366 : 12,647 = 12,647 : x
  2. Step 2: Convert to fraction form
    5,366/12,647 = 12,647/x
  3. Step 3: Cross multiply
    5,366x = 12,647 × 12,647
  4. Step 4: Simplify right side
    5,366x = 159,946,609
  5. Step 5: Solve for x
    x = 159,946,609/5,366
  6. Step 6: Final answer
    x = 29,807.42

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.