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Finding the Fourth Proportional to 8.26, 12.37 and 6.34

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Solution

The fourth proportional to 8.26, 12.37 and 6.34 is: 9.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8.26 : 12.37 = 6.34 : x
  2. Step 2: Convert to fraction form
    8.26/12.37 = 6.34/x
  3. Step 3: Cross multiply
    8.26x = 12.37 × 6.34
  4. Step 4: Simplify right side
    8.26x = 78.43
  5. Step 5: Solve for x
    x = 78.43/8.26
  6. Step 6: Final answer
    x = 9.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.