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Finding the Fourth Proportional to 13,397.73, 20,109.71 and 11,190.70

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Solution

The fourth proportional to 13,397.73, 20,109.71 and 11,190.70 is: 16,797.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,397.73 : 20,109.71 = 11,190.70 : x
  2. Step 2: Convert to fraction form
    13,397.73/20,109.71 = 11,190.70/x
  3. Step 3: Cross multiply
    13,397.73x = 20,109.71 × 11,190.70
  4. Step 4: Simplify right side
    13,397.73x = 225,041,731.70
  5. Step 5: Solve for x
    x = 225,041,731.70/13,397.73
  6. Step 6: Final answer
    x = 16,797.00

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