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Finding the Fourth Proportional to 16,878.70, 25,323.18 and 11,957.86

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Solution

The fourth proportional to 16,878.70, 25,323.18 and 11,957.86 is: 17,940.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,878.70 : 25,323.18 = 11,957.86 : x
  2. Step 2: Convert to fraction form
    16,878.70/25,323.18 = 11,957.86/x
  3. Step 3: Cross multiply
    16,878.70x = 25,323.18 × 11,957.86
  4. Step 4: Simplify right side
    16,878.70x = 302,811,041.19
  5. Step 5: Solve for x
    x = 302,811,041.19/16,878.70
  6. Step 6: Final answer
    x = 17,940.42

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