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Finding the Fourth Proportional to 11,108.61, 15,335.91 and 8,835.48

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Solution

The fourth proportional to 11,108.61, 15,335.91 and 8,835.48 is: 12,197.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,108.61 : 15,335.91 = 8,835.48 : x
  2. Step 2: Convert to fraction form
    11,108.61/15,335.91 = 8,835.48/x
  3. Step 3: Cross multiply
    11,108.61x = 15,335.91 × 8,835.48
  4. Step 4: Simplify right side
    11,108.61x = 135,500,126.09
  5. Step 5: Solve for x
    x = 135,500,126.09/11,108.61
  6. Step 6: Final answer
    x = 12,197.76

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