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Finding the Third Proportional to 5,187 and 8,114

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Solution

The third proportional to 5,187 and 8,114 is: 12,692.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187 : 8,114 = 8,114 : x
  2. Step 2: Convert to fraction form
    5,187/8,114 = 8,114/x
  3. Step 3: Cross multiply
    5,187x = 8,114 × 8,114
  4. Step 4: Simplify right side
    5,187x = 65,836,996
  5. Step 5: Solve for x
    x = 65,836,996/5,187
  6. Step 6: Final answer
    x = 12,692.69

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.