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Finding the Fourth Proportional to 15,978.94, 23,954.74 and 6,111.32

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Solution

The fourth proportional to 15,978.94, 23,954.74 and 6,111.32 is: 9,161.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,978.94 : 23,954.74 = 6,111.32 : x
  2. Step 2: Convert to fraction form
    15,978.94/23,954.74 = 6,111.32/x
  3. Step 3: Cross multiply
    15,978.94x = 23,954.74 × 6,111.32
  4. Step 4: Simplify right side
    15,978.94x = 146,394,946.60
  5. Step 5: Solve for x
    x = 146,394,946.60/15,978.94
  6. Step 6: Final answer
    x = 9,161.74

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