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Finding the Fourth Proportional to 7,622.91, 11,426.52 and 5,157.96

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Solution

The fourth proportional to 7,622.91, 11,426.52 and 5,157.96 is: 7,731.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,622.91 : 11,426.52 = 5,157.96 : x
  2. Step 2: Convert to fraction form
    7,622.91/11,426.52 = 5,157.96/x
  3. Step 3: Cross multiply
    7,622.91x = 11,426.52 × 5,157.96
  4. Step 4: Simplify right side
    7,622.91x = 58,937,533.10
  5. Step 5: Solve for x
    x = 58,937,533.10/7,622.91
  6. Step 6: Final answer
    x = 7,731.63

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