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Finding the Fourth Proportional to 9,192.73, 13,778.16 and 5,288.94

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Solution

The fourth proportional to 9,192.73, 13,778.16 and 5,288.94 is: 7,927.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,192.73 : 13,778.16 = 5,288.94 : x
  2. Step 2: Convert to fraction form
    9,192.73/13,778.16 = 5,288.94/x
  3. Step 3: Cross multiply
    9,192.73x = 13,778.16 × 5,288.94
  4. Step 4: Simplify right side
    9,192.73x = 72,871,861.55
  5. Step 5: Solve for x
    x = 72,871,861.55/9,192.73
  6. Step 6: Final answer
    x = 7,927.12

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