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Finding the Fourth Proportional to 13,059.54, 18,021.66 and 7,091.08

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Solution

The fourth proportional to 13,059.54, 18,021.66 and 7,091.08 is: 9,785.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,059.54 : 18,021.66 = 7,091.08 : x
  2. Step 2: Convert to fraction form
    13,059.54/18,021.66 = 7,091.08/x
  3. Step 3: Cross multiply
    13,059.54x = 18,021.66 × 7,091.08
  4. Step 4: Simplify right side
    13,059.54x = 127,793,032.79
  5. Step 5: Solve for x
    x = 127,793,032.79/13,059.54
  6. Step 6: Final answer
    x = 9,785.42

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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.