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Finding the Fourth Proportional to 13,897.48, 20,844.60 and 5,577.16

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Solution

The fourth proportional to 13,897.48, 20,844.60 and 5,577.16 is: 8,365.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,897.48 : 20,844.60 = 5,577.16 : x
  2. Step 2: Convert to fraction form
    13,897.48/20,844.60 = 5,577.16/x
  3. Step 3: Cross multiply
    13,897.48x = 20,844.60 × 5,577.16
  4. Step 4: Simplify right side
    13,897.48x = 116,253,669.34
  5. Step 5: Solve for x
    x = 116,253,669.34/13,897.48
  6. Step 6: Final answer
    x = 8,365.09

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