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Finding the Fourth Proportional to 13,059.50, 18,022.12 and 7,091.17

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Solution

The fourth proportional to 13,059.50, 18,022.12 and 7,091.17 is: 9,785.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,059.50 : 18,022.12 = 7,091.17 : x
  2. Step 2: Convert to fraction form
    13,059.50/18,022.12 = 7,091.17/x
  3. Step 3: Cross multiply
    13,059.50x = 18,022.12 × 7,091.17
  4. Step 4: Simplify right side
    13,059.50x = 127,797,916.68
  5. Step 5: Solve for x
    x = 127,797,916.68/13,059.50
  6. Step 6: Final answer
    x = 9,785.82

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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.