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Finding the Fourth Proportional to 13,100.40, 18,072.66 and 8,850.06

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Solution

The fourth proportional to 13,100.40, 18,072.66 and 8,850.06 is: 12,209.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,100.40 : 18,072.66 = 8,850.06 : x
  2. Step 2: Convert to fraction form
    13,100.40/18,072.66 = 8,850.06/x
  3. Step 3: Cross multiply
    13,100.40x = 18,072.66 × 8,850.06
  4. Step 4: Simplify right side
    13,100.40x = 159,944,125.36
  5. Step 5: Solve for x
    x = 159,944,125.36/13,100.40
  6. Step 6: Final answer
    x = 12,209.10

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.