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Finding the Fourth Proportional to 11,576.81, 17,357.91 and 7,623.81

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Solution

The fourth proportional to 11,576.81, 17,357.91 and 7,623.81 is: 11,430.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,576.81 : 17,357.91 = 7,623.81 : x
  2. Step 2: Convert to fraction form
    11,576.81/17,357.91 = 7,623.81/x
  3. Step 3: Cross multiply
    11,576.81x = 17,357.91 × 7,623.81
  4. Step 4: Simplify right side
    11,576.81x = 132,333,407.84
  5. Step 5: Solve for x
    x = 132,333,407.84/11,576.81
  6. Step 6: Final answer
    x = 11,430.91

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