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Finding the Fourth Proportional to 9.74, 13.37 and 9.52

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Solution

The fourth proportional to 9.74, 13.37 and 9.52 is: 13.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.74 : 13.37 = 9.52 : x
  2. Step 2: Convert to fraction form
    9.74/13.37 = 9.52/x
  3. Step 3: Cross multiply
    9.74x = 13.37 × 9.52
  4. Step 4: Simplify right side
    9.74x = 127.28
  5. Step 5: Solve for x
    x = 127.28/9.74
  6. Step 6: Final answer
    x = 13.07

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.