Home / 13,826.80-19,084.62-7,861.96

Finding the Fourth Proportional to 13,826.80, 19,084.62 and 7,861.96

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Solution

The fourth proportional to 13,826.80, 19,084.62 and 7,861.96 is: 10,851.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,826.80 : 19,084.62 = 7,861.96 : x
  2. Step 2: Convert to fraction form
    13,826.80/19,084.62 = 7,861.96/x
  3. Step 3: Cross multiply
    13,826.80x = 19,084.62 × 7,861.96
  4. Step 4: Simplify right side
    13,826.80x = 150,042,519.06
  5. Step 5: Solve for x
    x = 150,042,519.06/13,826.80
  6. Step 6: Final answer
    x = 10,851.57

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Why These Related Problems?

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