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Finding the Fourth Proportional to 9,992.85, 14,977.60 and 7,519.72

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Solution

The fourth proportional to 9,992.85, 14,977.60 and 7,519.72 is: 11,270.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,992.85 : 14,977.60 = 7,519.72 : x
  2. Step 2: Convert to fraction form
    9,992.85/14,977.60 = 7,519.72/x
  3. Step 3: Cross multiply
    9,992.85x = 14,977.60 × 7,519.72
  4. Step 4: Simplify right side
    9,992.85x = 112,627,358.27
  5. Step 5: Solve for x
    x = 112,627,358.27/9,992.85
  6. Step 6: Final answer
    x = 11,270.79

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