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Finding the Fourth Proportional to 13,955.34, 20,900.18 and 11,013.96

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Solution

The fourth proportional to 13,955.34, 20,900.18 and 11,013.96 is: 16,495.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.34 : 20,900.18 = 11,013.96 : x
  2. Step 2: Convert to fraction form
    13,955.34/20,900.18 = 11,013.96/x
  3. Step 3: Cross multiply
    13,955.34x = 20,900.18 × 11,013.96
  4. Step 4: Simplify right side
    13,955.34x = 230,193,746.51
  5. Step 5: Solve for x
    x = 230,193,746.51/13,955.34
  6. Step 6: Final answer
    x = 16,495.03

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