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Finding the Fourth Proportional to 13,804.53, 20,706.79 and 3,416.28

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Solution

The fourth proportional to 13,804.53, 20,706.79 and 3,416.28 is: 5,124.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,804.53 : 20,706.79 = 3,416.28 : x
  2. Step 2: Convert to fraction form
    13,804.53/20,706.79 = 3,416.28/x
  3. Step 3: Cross multiply
    13,804.53x = 20,706.79 × 3,416.28
  4. Step 4: Simplify right side
    13,804.53x = 70,740,112.76
  5. Step 5: Solve for x
    x = 70,740,112.76/13,804.53
  6. Step 6: Final answer
    x = 5,124.41

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