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Finding the Fourth Proportional to 12,493.36, 18,739.68 and 3,259.36

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Solution

The fourth proportional to 12,493.36, 18,739.68 and 3,259.36 is: 4,888.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,493.36 : 18,739.68 = 3,259.36 : x
  2. Step 2: Convert to fraction form
    12,493.36/18,739.68 = 3,259.36/x
  3. Step 3: Cross multiply
    12,493.36x = 18,739.68 × 3,259.36
  4. Step 4: Simplify right side
    12,493.36x = 61,079,363.40
  5. Step 5: Solve for x
    x = 61,079,363.40/12,493.36
  6. Step 6: Final answer
    x = 4,888.95

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