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Finding the Third Proportional to 5,345 and 8,297

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Solution

The third proportional to 5,345 and 8,297 is: 12,879.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345 : 8,297 = 8,297 : x
  2. Step 2: Convert to fraction form
    5,345/8,297 = 8,297/x
  3. Step 3: Cross multiply
    5,345x = 8,297 × 8,297
  4. Step 4: Simplify right side
    5,345x = 68,840,209
  5. Step 5: Solve for x
    x = 68,840,209/5,345
  6. Step 6: Final answer
    x = 12,879.37

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.