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Finding the Fourth Proportional to 15,190.55, 20,962.92 and 8,476.11

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Solution

The fourth proportional to 15,190.55, 20,962.92 and 8,476.11 is: 11,697.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,190.55 : 20,962.92 = 8,476.11 : x
  2. Step 2: Convert to fraction form
    15,190.55/20,962.92 = 8,476.11/x
  3. Step 3: Cross multiply
    15,190.55x = 20,962.92 × 8,476.11
  4. Step 4: Simplify right side
    15,190.55x = 177,683,999.95
  5. Step 5: Solve for x
    x = 177,683,999.95/15,190.55
  6. Step 6: Final answer
    x = 11,697.01

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