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Finding the Fourth Proportional to 13,017.62, 17,955.06 and 8,985.98

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Solution

The fourth proportional to 13,017.62, 17,955.06 and 8,985.98 is: 12,394.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,017.62 : 17,955.06 = 8,985.98 : x
  2. Step 2: Convert to fraction form
    13,017.62/17,955.06 = 8,985.98/x
  3. Step 3: Cross multiply
    13,017.62x = 17,955.06 × 8,985.98
  4. Step 4: Simplify right side
    13,017.62x = 161,343,810.06
  5. Step 5: Solve for x
    x = 161,343,810.06/13,017.62
  6. Step 6: Final answer
    x = 12,394.26

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