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Finding the Third Proportional to 5,106 and 12,495

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Solution

The third proportional to 5,106 and 12,495 is: 30,576.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106 : 12,495 = 12,495 : x
  2. Step 2: Convert to fraction form
    5,106/12,495 = 12,495/x
  3. Step 3: Cross multiply
    5,106x = 12,495 × 12,495
  4. Step 4: Simplify right side
    5,106x = 156,125,025
  5. Step 5: Solve for x
    x = 156,125,025/5,106
  6. Step 6: Final answer
    x = 30,576.78

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Why These Related Problems?

These problems maintain the same ratio (2.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.