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Finding the Fourth Proportional to 11,124.21, 16,686.52 and 5,199.47

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Solution

The fourth proportional to 11,124.21, 16,686.52 and 5,199.47 is: 7,799.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,124.21 : 16,686.52 = 5,199.47 : x
  2. Step 2: Convert to fraction form
    11,124.21/16,686.52 = 5,199.47/x
  3. Step 3: Cross multiply
    11,124.21x = 16,686.52 × 5,199.47
  4. Step 4: Simplify right side
    11,124.21x = 86,761,060.14
  5. Step 5: Solve for x
    x = 86,761,060.14/11,124.21
  6. Step 6: Final answer
    x = 7,799.30

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