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Finding the Fourth Proportional to 12,328.65, 18,494.99 and 6,784.60

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Solution

The fourth proportional to 12,328.65, 18,494.99 and 6,784.60 is: 10,178.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,328.65 : 18,494.99 = 6,784.60 : x
  2. Step 2: Convert to fraction form
    12,328.65/18,494.99 = 6,784.60/x
  3. Step 3: Cross multiply
    12,328.65x = 18,494.99 × 6,784.60
  4. Step 4: Simplify right side
    12,328.65x = 125,481,109.15
  5. Step 5: Solve for x
    x = 125,481,109.15/12,328.65
  6. Step 6: Final answer
    x = 10,178.01

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