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Finding the Third Proportional to 7,566 and 9,159

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Solution

The third proportional to 7,566 and 9,159 is: 11,087.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,566 : 9,159 = 9,159 : x
  2. Step 2: Convert to fraction form
    7,566/9,159 = 9,159/x
  3. Step 3: Cross multiply
    7,566x = 9,159 × 9,159
  4. Step 4: Simplify right side
    7,566x = 83,887,281
  5. Step 5: Solve for x
    x = 83,887,281/7,566
  6. Step 6: Final answer
    x = 11,087.40

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Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.