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Finding the Fourth Proportional to 13,596.74, 20,398.34 and 5,276.96

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Solution

The fourth proportional to 13,596.74, 20,398.34 and 5,276.96 is: 7,916.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,596.74 : 20,398.34 = 5,276.96 : x
  2. Step 2: Convert to fraction form
    13,596.74/20,398.34 = 5,276.96/x
  3. Step 3: Cross multiply
    13,596.74x = 20,398.34 × 5,276.96
  4. Step 4: Simplify right side
    13,596.74x = 107,641,135.45
  5. Step 5: Solve for x
    x = 107,641,135.45/13,596.74
  6. Step 6: Final answer
    x = 7,916.69

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