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Finding the Fourth Proportional to 9,978.07, 14,976.38 and 5,051.15

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Solution

The fourth proportional to 9,978.07, 14,976.38 and 5,051.15 is: 7,581.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,978.07 : 14,976.38 = 5,051.15 : x
  2. Step 2: Convert to fraction form
    9,978.07/14,976.38 = 5,051.15/x
  3. Step 3: Cross multiply
    9,978.07x = 14,976.38 × 5,051.15
  4. Step 4: Simplify right side
    9,978.07x = 75,647,941.84
  5. Step 5: Solve for x
    x = 75,647,941.84/9,978.07
  6. Step 6: Final answer
    x = 7,581.42

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