Home / 18,789.26-25,930.06-10,405.94

Finding the Fourth Proportional to 18,789.26, 25,930.06 and 10,405.94

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Solution

The fourth proportional to 18,789.26, 25,930.06 and 10,405.94 is: 14,360.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789.26 : 25,930.06 = 10,405.94 : x
  2. Step 2: Convert to fraction form
    18,789.26/25,930.06 = 10,405.94/x
  3. Step 3: Cross multiply
    18,789.26x = 25,930.06 × 10,405.94
  4. Step 4: Simplify right side
    18,789.26x = 269,826,648.56
  5. Step 5: Solve for x
    x = 269,826,648.56/18,789.26
  6. Step 6: Final answer
    x = 14,360.69

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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.