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Finding the Fourth Proportional to 14,663.92, 20,236.36 and 7,949.56

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Solution

The fourth proportional to 14,663.92, 20,236.36 and 7,949.56 is: 10,970.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,663.92 : 20,236.36 = 7,949.56 : x
  2. Step 2: Convert to fraction form
    14,663.92/20,236.36 = 7,949.56/x
  3. Step 3: Cross multiply
    14,663.92x = 20,236.36 × 7,949.56
  4. Step 4: Simplify right side
    14,663.92x = 160,870,158.00
  5. Step 5: Solve for x
    x = 160,870,158.00/14,663.92
  6. Step 6: Final answer
    x = 10,970.47

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