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Finding the Third Proportional to 11,520 and 15,088

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Solution

The third proportional to 11,520 and 15,088 is: 19,761.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,520 : 15,088 = 15,088 : x
  2. Step 2: Convert to fraction form
    11,520/15,088 = 15,088/x
  3. Step 3: Cross multiply
    11,520x = 15,088 × 15,088
  4. Step 4: Simplify right side
    11,520x = 227,647,744
  5. Step 5: Solve for x
    x = 227,647,744/11,520
  6. Step 6: Final answer
    x = 19,761.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.