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Finding the Fourth Proportional to 13,630.80, 20,437.02 and 4,743.84

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Solution

The fourth proportional to 13,630.80, 20,437.02 and 4,743.84 is: 7,112.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630.80 : 20,437.02 = 4,743.84 : x
  2. Step 2: Convert to fraction form
    13,630.80/20,437.02 = 4,743.84/x
  3. Step 3: Cross multiply
    13,630.80x = 20,437.02 × 4,743.84
  4. Step 4: Simplify right side
    13,630.80x = 96,949,952.96
  5. Step 5: Solve for x
    x = 96,949,952.96/13,630.80
  6. Step 6: Final answer
    x = 7,112.57

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