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Finding the Fourth Proportional to 7,399.92, 10,212.20 and 4,256.11

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Solution

The fourth proportional to 7,399.92, 10,212.20 and 4,256.11 is: 5,873.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,399.92 : 10,212.20 = 4,256.11 : x
  2. Step 2: Convert to fraction form
    7,399.92/10,212.20 = 4,256.11/x
  3. Step 3: Cross multiply
    7,399.92x = 10,212.20 × 4,256.11
  4. Step 4: Simplify right side
    7,399.92x = 43,464,246.54
  5. Step 5: Solve for x
    x = 43,464,246.54/7,399.92
  6. Step 6: Final answer
    x = 5,873.61

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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.