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Finding the Fourth Proportional to 7.36, 11.07 and 6.29

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Solution

The fourth proportional to 7.36, 11.07 and 6.29 is: 9.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.36 : 11.07 = 6.29 : x
  2. Step 2: Convert to fraction form
    7.36/11.07 = 6.29/x
  3. Step 3: Cross multiply
    7.36x = 11.07 × 6.29
  4. Step 4: Simplify right side
    7.36x = 69.68
  5. Step 5: Solve for x
    x = 69.68/7.36
  6. Step 6: Final answer
    x = 9.47

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.