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Finding the Fourth Proportional to 25.76, 38.62 and 11.52

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Solution

The fourth proportional to 25.76, 38.62 and 11.52 is: 17.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.76 : 38.62 = 11.52 : x
  2. Step 2: Convert to fraction form
    25.76/38.62 = 11.52/x
  3. Step 3: Cross multiply
    25.76x = 38.62 × 11.52
  4. Step 4: Simplify right side
    25.76x = 444.90
  5. Step 5: Solve for x
    x = 444.90/25.76
  6. Step 6: Final answer
    x = 17.27

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