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Finding the Fourth Proportional to 18,301.18, 25,255.65 and 9,917.68

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Solution

The fourth proportional to 18,301.18, 25,255.65 and 9,917.68 is: 13,686.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,301.18 : 25,255.65 = 9,917.68 : x
  2. Step 2: Convert to fraction form
    18,301.18/25,255.65 = 9,917.68/x
  3. Step 3: Cross multiply
    18,301.18x = 25,255.65 × 9,917.68
  4. Step 4: Simplify right side
    18,301.18x = 250,477,454.89
  5. Step 5: Solve for x
    x = 250,477,454.89/18,301.18
  6. Step 6: Final answer
    x = 13,686.41

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