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Finding the Third Proportional to 7,103.88 and 11,143.88

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Solution

The third proportional to 7,103.88 and 11,143.88 is: 17,481.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,103.88 : 11,143.88 = 11,143.88 : x
  2. Step 2: Convert to fraction form
    7,103.88/11,143.88 = 11,143.88/x
  3. Step 3: Cross multiply
    7,103.88x = 11,143.88 × 11,143.88
  4. Step 4: Simplify right side
    7,103.88x = 124,185,950.02
  5. Step 5: Solve for x
    x = 124,185,950.02/7,103.88
  6. Step 6: Final answer
    x = 17,481.44

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.