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Finding the Third Proportional to 7,159 and 9,530

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Solution

The third proportional to 7,159 and 9,530 is: 12,686.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,159 : 9,530 = 9,530 : x
  2. Step 2: Convert to fraction form
    7,159/9,530 = 9,530/x
  3. Step 3: Cross multiply
    7,159x = 9,530 × 9,530
  4. Step 4: Simplify right side
    7,159x = 90,820,900
  5. Step 5: Solve for x
    x = 90,820,900/7,159
  6. Step 6: Final answer
    x = 12,686.26

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.