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Finding the Fourth Proportional to 6,912.53, 10,367.26 and 1,981.07

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Solution

The fourth proportional to 6,912.53, 10,367.26 and 1,981.07 is: 2,971.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.53 : 10,367.26 = 1,981.07 : x
  2. Step 2: Convert to fraction form
    6,912.53/10,367.26 = 1,981.07/x
  3. Step 3: Cross multiply
    6,912.53x = 10,367.26 × 1,981.07
  4. Step 4: Simplify right side
    6,912.53x = 20,538,267.77
  5. Step 5: Solve for x
    x = 20,538,267.77/6,912.53
  6. Step 6: Final answer
    x = 2,971.17

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