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Finding the Third Proportional to 5,217 and 7,955

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Solution

The third proportional to 5,217 and 7,955 is: 12,129.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217 : 7,955 = 7,955 : x
  2. Step 2: Convert to fraction form
    5,217/7,955 = 7,955/x
  3. Step 3: Cross multiply
    5,217x = 7,955 × 7,955
  4. Step 4: Simplify right side
    5,217x = 63,282,025
  5. Step 5: Solve for x
    x = 63,282,025/5,217
  6. Step 6: Final answer
    x = 12,129.96

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.