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Finding the Fourth Proportional to 13,531.76, 18,661.73 and 8,496.46

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Solution

The fourth proportional to 13,531.76, 18,661.73 and 8,496.46 is: 11,717.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,531.76 : 18,661.73 = 8,496.46 : x
  2. Step 2: Convert to fraction form
    13,531.76/18,661.73 = 8,496.46/x
  3. Step 3: Cross multiply
    13,531.76x = 18,661.73 × 8,496.46
  4. Step 4: Simplify right side
    13,531.76x = 158,558,617.06
  5. Step 5: Solve for x
    x = 158,558,617.06/13,531.76
  6. Step 6: Final answer
    x = 11,717.51

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