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Finding the Third Proportional to 7,619.06 and 11,773.69

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Solution

The third proportional to 7,619.06 and 11,773.69 is: 18,193.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.06 : 11,773.69 = 11,773.69 : x
  2. Step 2: Convert to fraction form
    7,619.06/11,773.69 = 11,773.69/x
  3. Step 3: Cross multiply
    7,619.06x = 11,773.69 × 11,773.69
  4. Step 4: Simplify right side
    7,619.06x = 138,619,717.35
  5. Step 5: Solve for x
    x = 138,619,717.35/7,619.06
  6. Step 6: Final answer
    x = 18,193.80

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.