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Finding the Third Proportional to 11.79 and 25.72

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Solution

The third proportional to 11.79 and 25.72 is: 56.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.79 : 25.72 = 25.72 : x
  2. Step 2: Convert to fraction form
    11.79/25.72 = 25.72/x
  3. Step 3: Cross multiply
    11.79x = 25.72 × 25.72
  4. Step 4: Simplify right side
    11.79x = 661.41
  5. Step 5: Solve for x
    x = 661.41/11.79
  6. Step 6: Final answer
    x = 56.09

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.