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Finding the Fourth Proportional to 13,506.92, 20,256.44 and 5,186.32

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Solution

The fourth proportional to 13,506.92, 20,256.44 and 5,186.32 is: 7,777.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,506.92 : 20,256.44 = 5,186.32 : x
  2. Step 2: Convert to fraction form
    13,506.92/20,256.44 = 5,186.32/x
  3. Step 3: Cross multiply
    13,506.92x = 20,256.44 × 5,186.32
  4. Step 4: Simplify right side
    13,506.92x = 105,056,379.90
  5. Step 5: Solve for x
    x = 105,056,379.90/13,506.92
  6. Step 6: Final answer
    x = 7,777.97

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