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Finding the Fourth Proportional to 13,316.94, 19,969.20 and 3,953.52

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Solution

The fourth proportional to 13,316.94, 19,969.20 and 3,953.52 is: 5,928.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.94 : 19,969.20 = 3,953.52 : x
  2. Step 2: Convert to fraction form
    13,316.94/19,969.20 = 3,953.52/x
  3. Step 3: Cross multiply
    13,316.94x = 19,969.20 × 3,953.52
  4. Step 4: Simplify right side
    13,316.94x = 78,948,631.58
  5. Step 5: Solve for x
    x = 78,948,631.58/13,316.94
  6. Step 6: Final answer
    x = 5,928.44

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