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Finding the Third Proportional to 3.96 and 7.36

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Solution

The third proportional to 3.96 and 7.36 is: 13.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3.96 : 7.36 = 7.36 : x
  2. Step 2: Convert to fraction form
    3.96/7.36 = 7.36/x
  3. Step 3: Cross multiply
    3.96x = 7.36 × 7.36
  4. Step 4: Simplify right side
    3.96x = 54.16
  5. Step 5: Solve for x
    x = 54.16/3.96
  6. Step 6: Final answer
    x = 13.67

Related Problems

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.