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Finding the Fourth Proportional to 18,197.92, 25,112.55 and 10,240.57

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Solution

The fourth proportional to 18,197.92, 25,112.55 and 10,240.57 is: 14,131.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,197.92 : 25,112.55 = 10,240.57 : x
  2. Step 2: Convert to fraction form
    18,197.92/25,112.55 = 10,240.57/x
  3. Step 3: Cross multiply
    18,197.92x = 25,112.55 × 10,240.57
  4. Step 4: Simplify right side
    18,197.92x = 257,166,826.15
  5. Step 5: Solve for x
    x = 257,166,826.15/18,197.92
  6. Step 6: Final answer
    x = 14,131.66

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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.