Home / 13,427.50-20,141.75-5,105.96

Finding the Fourth Proportional to 13,427.50, 20,141.75 and 5,105.96

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Solution

The fourth proportional to 13,427.50, 20,141.75 and 5,105.96 is: 7,659.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.50 : 20,141.75 = 5,105.96 : x
  2. Step 2: Convert to fraction form
    13,427.50/20,141.75 = 5,105.96/x
  3. Step 3: Cross multiply
    13,427.50x = 20,141.75 × 5,105.96
  4. Step 4: Simplify right side
    13,427.50x = 102,843,032.95
  5. Step 5: Solve for x
    x = 102,843,032.95/13,427.50
  6. Step 6: Final answer
    x = 7,659.14

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.