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Finding the Third Proportional to 4,812 and 11,982

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Solution

The third proportional to 4,812 and 11,982 is: 29,835.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812 : 11,982 = 11,982 : x
  2. Step 2: Convert to fraction form
    4,812/11,982 = 11,982/x
  3. Step 3: Cross multiply
    4,812x = 11,982 × 11,982
  4. Step 4: Simplify right side
    4,812x = 143,568,324
  5. Step 5: Solve for x
    x = 143,568,324/4,812
  6. Step 6: Final answer
    x = 29,835.48

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Why These Related Problems?

These problems maintain the same ratio (2.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.