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Finding the Third Proportional to 4.36 and 7.73

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Solution

The third proportional to 4.36 and 7.73 is: 13.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.36 : 7.73 = 7.73 : x
  2. Step 2: Convert to fraction form
    4.36/7.73 = 7.73/x
  3. Step 3: Cross multiply
    4.36x = 7.73 × 7.73
  4. Step 4: Simplify right side
    4.36x = 59.82
  5. Step 5: Solve for x
    x = 59.82/4.36
  6. Step 6: Final answer
    x = 13.72

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Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.