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Finding the Fourth Proportional to 15,993.27, 22,070.79 and 8,919.99

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Solution

The fourth proportional to 15,993.27, 22,070.79 and 8,919.99 is: 12,309.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,993.27 : 22,070.79 = 8,919.99 : x
  2. Step 2: Convert to fraction form
    15,993.27/22,070.79 = 8,919.99/x
  3. Step 3: Cross multiply
    15,993.27x = 22,070.79 × 8,919.99
  4. Step 4: Simplify right side
    15,993.27x = 196,871,226.09
  5. Step 5: Solve for x
    x = 196,871,226.09/15,993.27
  6. Step 6: Final answer
    x = 12,309.63

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