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Finding the Fourth Proportional to 19,515.98, 26,929.17 and 11,855.27

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Solution

The fourth proportional to 19,515.98, 26,929.17 and 11,855.27 is: 16,358.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,515.98 : 26,929.17 = 11,855.27 : x
  2. Step 2: Convert to fraction form
    19,515.98/26,929.17 = 11,855.27/x
  3. Step 3: Cross multiply
    19,515.98x = 26,929.17 × 11,855.27
  4. Step 4: Simplify right side
    19,515.98x = 319,252,648.55
  5. Step 5: Solve for x
    x = 319,252,648.55/19,515.98
  6. Step 6: Final answer
    x = 16,358.52

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