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Finding the Fourth Proportional to 11.03, 16.48 and 9.62

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Solution

The fourth proportional to 11.03, 16.48 and 9.62 is: 14.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.03 : 16.48 = 9.62 : x
  2. Step 2: Convert to fraction form
    11.03/16.48 = 9.62/x
  3. Step 3: Cross multiply
    11.03x = 16.48 × 9.62
  4. Step 4: Simplify right side
    11.03x = 158.53
  5. Step 5: Solve for x
    x = 158.53/11.03
  6. Step 6: Final answer
    x = 14.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.