Home / 13,981.46-20,972.97-5,661.27

Finding the Fourth Proportional to 13,981.46, 20,972.97 and 5,661.27

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Solution

The fourth proportional to 13,981.46, 20,972.97 and 5,661.27 is: 8,492.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,981.46 : 20,972.97 = 5,661.27 : x
  2. Step 2: Convert to fraction form
    13,981.46/20,972.97 = 5,661.27/x
  3. Step 3: Cross multiply
    13,981.46x = 20,972.97 × 5,661.27
  4. Step 4: Simplify right side
    13,981.46x = 118,733,645.87
  5. Step 5: Solve for x
    x = 118,733,645.87/13,981.46
  6. Step 6: Final answer
    x = 8,492.22

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