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Finding the Fourth Proportional to 7.96, 11 and 6.36

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Solution

The fourth proportional to 7.96, 11 and 6.36 is: 8.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.96 : 11 = 6.36 : x
  2. Step 2: Convert to fraction form
    7.96/11 = 6.36/x
  3. Step 3: Cross multiply
    7.96x = 11 × 6.36
  4. Step 4: Simplify right side
    7.96x = 69.96
  5. Step 5: Solve for x
    x = 69.96/7.96
  6. Step 6: Final answer
    x = 8.79

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.