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Finding the Fourth Proportional to 18,877.03, 28,321.01 and 7,187.51

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Solution

The fourth proportional to 18,877.03, 28,321.01 and 7,187.51 is: 10,783.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,877.03 : 28,321.01 = 7,187.51 : x
  2. Step 2: Convert to fraction form
    18,877.03/28,321.01 = 7,187.51/x
  3. Step 3: Cross multiply
    18,877.03x = 28,321.01 × 7,187.51
  4. Step 4: Simplify right side
    18,877.03x = 203,557,542.59
  5. Step 5: Solve for x
    x = 203,557,542.59/18,877.03
  6. Step 6: Final answer
    x = 10,783.35

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