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Finding the Fourth Proportional to 16,911.76, 25,369.96 and 5,225.84

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Solution

The fourth proportional to 16,911.76, 25,369.96 and 5,225.84 is: 7,839.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,911.76 : 25,369.96 = 5,225.84 : x
  2. Step 2: Convert to fraction form
    16,911.76/25,369.96 = 5,225.84/x
  3. Step 3: Cross multiply
    16,911.76x = 25,369.96 × 5,225.84
  4. Step 4: Simplify right side
    16,911.76x = 132,579,351.77
  5. Step 5: Solve for x
    x = 132,579,351.77/16,911.76
  6. Step 6: Final answer
    x = 7,839.48

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