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Finding the Fourth Proportional to 18,462.95, 25,512.18 and 13,148.54

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Solution

The fourth proportional to 18,462.95, 25,512.18 and 13,148.54 is: 18,168.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,462.95 : 25,512.18 = 13,148.54 : x
  2. Step 2: Convert to fraction form
    18,462.95/25,512.18 = 13,148.54/x
  3. Step 3: Cross multiply
    18,462.95x = 25,512.18 × 13,148.54
  4. Step 4: Simplify right side
    18,462.95x = 335,447,919.22
  5. Step 5: Solve for x
    x = 335,447,919.22/18,462.95
  6. Step 6: Final answer
    x = 18,168.71

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.