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Finding the Third Proportional to 8,813.81 and 11,512.13

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Solution

The third proportional to 8,813.81 and 11,512.13 is: 15,036.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.81 : 11,512.13 = 11,512.13 : x
  2. Step 2: Convert to fraction form
    8,813.81/11,512.13 = 11,512.13/x
  3. Step 3: Cross multiply
    8,813.81x = 11,512.13 × 11,512.13
  4. Step 4: Simplify right side
    8,813.81x = 132,529,022.02
  5. Step 5: Solve for x
    x = 132,529,022.02/8,813.81
  6. Step 6: Final answer
    x = 15,036.51

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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.