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Finding the Fourth Proportional to 10.44, 15.63 and 9.12

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Solution

The fourth proportional to 10.44, 15.63 and 9.12 is: 13.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.44 : 15.63 = 9.12 : x
  2. Step 2: Convert to fraction form
    10.44/15.63 = 9.12/x
  3. Step 3: Cross multiply
    10.44x = 15.63 × 9.12
  4. Step 4: Simplify right side
    10.44x = 142.55
  5. Step 5: Solve for x
    x = 142.55/10.44
  6. Step 6: Final answer
    x = 13.65

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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.