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Finding the Third Proportional to 4,128 and 9,088

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Solution

The third proportional to 4,128 and 9,088 is: 20,007.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128 : 9,088 = 9,088 : x
  2. Step 2: Convert to fraction form
    4,128/9,088 = 9,088/x
  3. Step 3: Cross multiply
    4,128x = 9,088 × 9,088
  4. Step 4: Simplify right side
    4,128x = 82,591,744
  5. Step 5: Solve for x
    x = 82,591,744/4,128
  6. Step 6: Final answer
    x = 20,007.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.