Home / 18,952.11-28,436.33-7,861.29

Finding the Fourth Proportional to 18,952.11, 28,436.33 and 7,861.29

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Solution

The fourth proportional to 18,952.11, 28,436.33 and 7,861.29 is: 11,795.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,952.11 : 28,436.33 = 7,861.29 : x
  2. Step 2: Convert to fraction form
    18,952.11/28,436.33 = 7,861.29/x
  3. Step 3: Cross multiply
    18,952.11x = 28,436.33 × 7,861.29
  4. Step 4: Simplify right side
    18,952.11x = 223,546,149.68
  5. Step 5: Solve for x
    x = 223,546,149.68/18,952.11
  6. Step 6: Final answer
    x = 11,795.32

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Why These Related Problems?

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