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Finding the Fourth Proportional to 13,583.53, 20,377.20 and 12,836.53

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Solution

The fourth proportional to 13,583.53, 20,377.20 and 12,836.53 is: 19,256.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.53 : 20,377.20 = 12,836.53 : x
  2. Step 2: Convert to fraction form
    13,583.53/20,377.20 = 12,836.53/x
  3. Step 3: Cross multiply
    13,583.53x = 20,377.20 × 12,836.53
  4. Step 4: Simplify right side
    13,583.53x = 261,572,540.52
  5. Step 5: Solve for x
    x = 261,572,540.52/13,583.53
  6. Step 6: Final answer
    x = 19,256.59

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