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Finding the Third Proportional to 4,138 and 8,627

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Solution

The third proportional to 4,138 and 8,627 is: 17,985.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138 : 8,627 = 8,627 : x
  2. Step 2: Convert to fraction form
    4,138/8,627 = 8,627/x
  3. Step 3: Cross multiply
    4,138x = 8,627 × 8,627
  4. Step 4: Simplify right side
    4,138x = 74,425,129
  5. Step 5: Solve for x
    x = 74,425,129/4,138
  6. Step 6: Final answer
    x = 17,985.77

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.