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Finding the Fourth Proportional to 12,669.51, 19,009.59 and 5,644.69

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Solution

The fourth proportional to 12,669.51, 19,009.59 and 5,644.69 is: 8,469.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,669.51 : 19,009.59 = 5,644.69 : x
  2. Step 2: Convert to fraction form
    12,669.51/19,009.59 = 5,644.69/x
  3. Step 3: Cross multiply
    12,669.51x = 19,009.59 × 5,644.69
  4. Step 4: Simplify right side
    12,669.51x = 107,303,173.89
  5. Step 5: Solve for x
    x = 107,303,173.89/12,669.51
  6. Step 6: Final answer
    x = 8,469.40

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