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Finding the Fourth Proportional to 15,406.56, 23,122.80 and 6,648.12

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Solution

The fourth proportional to 15,406.56, 23,122.80 and 6,648.12 is: 9,977.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406.56 : 23,122.80 = 6,648.12 : x
  2. Step 2: Convert to fraction form
    15,406.56/23,122.80 = 6,648.12/x
  3. Step 3: Cross multiply
    15,406.56x = 23,122.80 × 6,648.12
  4. Step 4: Simplify right side
    15,406.56x = 153,723,149.14
  5. Step 5: Solve for x
    x = 153,723,149.14/15,406.56
  6. Step 6: Final answer
    x = 9,977.77

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