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Finding the Fourth Proportional to 15,978.98, 23,962.26 and 6,620.52

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Solution

The fourth proportional to 15,978.98, 23,962.26 and 6,620.52 is: 9,928.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,978.98 : 23,962.26 = 6,620.52 : x
  2. Step 2: Convert to fraction form
    15,978.98/23,962.26 = 6,620.52/x
  3. Step 3: Cross multiply
    15,978.98x = 23,962.26 × 6,620.52
  4. Step 4: Simplify right side
    15,978.98x = 158,642,621.58
  5. Step 5: Solve for x
    x = 158,642,621.58/15,978.98
  6. Step 6: Final answer
    x = 9,928.21

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