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Finding the Fourth Proportional to 10,086.44, 15,129.73 and 3,512.61

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Solution

The fourth proportional to 10,086.44, 15,129.73 and 3,512.61 is: 5,268.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,086.44 : 15,129.73 = 3,512.61 : x
  2. Step 2: Convert to fraction form
    10,086.44/15,129.73 = 3,512.61/x
  3. Step 3: Cross multiply
    10,086.44x = 15,129.73 × 3,512.61
  4. Step 4: Simplify right side
    10,086.44x = 53,144,788.55
  5. Step 5: Solve for x
    x = 53,144,788.55/10,086.44
  6. Step 6: Final answer
    x = 5,268.93

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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.