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Finding the Fourth Proportional to 11.25, 16.93 and 10.32

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Solution

The fourth proportional to 11.25, 16.93 and 10.32 is: 15.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.25 : 16.93 = 10.32 : x
  2. Step 2: Convert to fraction form
    11.25/16.93 = 10.32/x
  3. Step 3: Cross multiply
    11.25x = 16.93 × 10.32
  4. Step 4: Simplify right side
    11.25x = 174.72
  5. Step 5: Solve for x
    x = 174.72/11.25
  6. Step 6: Final answer
    x = 15.53

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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.