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Finding the Fourth Proportional to 11,463.52, 15,822.47 and 6,989.74

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Solution

The fourth proportional to 11,463.52, 15,822.47 and 6,989.74 is: 9,647.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,463.52 : 15,822.47 = 6,989.74 : x
  2. Step 2: Convert to fraction form
    11,463.52/15,822.47 = 6,989.74/x
  3. Step 3: Cross multiply
    11,463.52x = 15,822.47 × 6,989.74
  4. Step 4: Simplify right side
    11,463.52x = 110,594,951.46
  5. Step 5: Solve for x
    x = 110,594,951.46/11,463.52
  6. Step 6: Final answer
    x = 9,647.56

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