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Finding the Fourth Proportional to 7,443.81, 11,171.09 and 2,764.48

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Solution

The fourth proportional to 7,443.81, 11,171.09 and 2,764.48 is: 4,148.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,443.81 : 11,171.09 = 2,764.48 : x
  2. Step 2: Convert to fraction form
    7,443.81/11,171.09 = 2,764.48/x
  3. Step 3: Cross multiply
    7,443.81x = 11,171.09 × 2,764.48
  4. Step 4: Simplify right side
    7,443.81x = 30,882,241.06
  5. Step 5: Solve for x
    x = 30,882,241.06/7,443.81
  6. Step 6: Final answer
    x = 4,148.72

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