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Finding the Fourth Proportional to 13,366.71, 18,450.67 and 7,703.72

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Solution

The fourth proportional to 13,366.71, 18,450.67 and 7,703.72 is: 10,633.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.71 : 18,450.67 = 7,703.72 : x
  2. Step 2: Convert to fraction form
    13,366.71/18,450.67 = 7,703.72/x
  3. Step 3: Cross multiply
    13,366.71x = 18,450.67 × 7,703.72
  4. Step 4: Simplify right side
    13,366.71x = 142,138,664.72
  5. Step 5: Solve for x
    x = 142,138,664.72/13,366.71
  6. Step 6: Final answer
    x = 10,633.78

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