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Finding the Fourth Proportional to 7,905.02, 11,857.52 and 5,432.36

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Solution

The fourth proportional to 7,905.02, 11,857.52 and 5,432.36 is: 8,148.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,905.02 : 11,857.52 = 5,432.36 : x
  2. Step 2: Convert to fraction form
    7,905.02/11,857.52 = 5,432.36/x
  3. Step 3: Cross multiply
    7,905.02x = 11,857.52 × 5,432.36
  4. Step 4: Simplify right side
    7,905.02x = 64,414,230.90
  5. Step 5: Solve for x
    x = 64,414,230.90/7,905.02
  6. Step 6: Final answer
    x = 8,148.53

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