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Finding the Fourth Proportional to 14,495.74, 21,734.88 and 7,912.78

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Solution

The fourth proportional to 14,495.74, 21,734.88 and 7,912.78 is: 11,864.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,495.74 : 21,734.88 = 7,912.78 : x
  2. Step 2: Convert to fraction form
    14,495.74/21,734.88 = 7,912.78/x
  3. Step 3: Cross multiply
    14,495.74x = 21,734.88 × 7,912.78
  4. Step 4: Simplify right side
    14,495.74x = 171,983,323.77
  5. Step 5: Solve for x
    x = 171,983,323.77/14,495.74
  6. Step 6: Final answer
    x = 11,864.40

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