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Finding the Third Proportional to 11,028.66 and 15,403.92

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Solution

The third proportional to 11,028.66 and 15,403.92 is: 21,514.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,028.66 : 15,403.92 = 15,403.92 : x
  2. Step 2: Convert to fraction form
    11,028.66/15,403.92 = 15,403.92/x
  3. Step 3: Cross multiply
    11,028.66x = 15,403.92 × 15,403.92
  4. Step 4: Simplify right side
    11,028.66x = 237,280,809.13
  5. Step 5: Solve for x
    x = 237,280,809.13/11,028.66
  6. Step 6: Final answer
    x = 21,514.93

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.