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Finding the Fourth Proportional to 13,713.83, 20,566.52 and 7,136.43

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Solution

The fourth proportional to 13,713.83, 20,566.52 and 7,136.43 is: 10,702.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,713.83 : 20,566.52 = 7,136.43 : x
  2. Step 2: Convert to fraction form
    13,713.83/20,566.52 = 7,136.43/x
  3. Step 3: Cross multiply
    13,713.83x = 20,566.52 × 7,136.43
  4. Step 4: Simplify right side
    13,713.83x = 146,771,530.32
  5. Step 5: Solve for x
    x = 146,771,530.32/13,713.83
  6. Step 6: Final answer
    x = 10,702.45

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