Home / 18,257.70-25,195.78-10,081.56

Finding the Fourth Proportional to 18,257.70, 25,195.78 and 10,081.56

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Solution

The fourth proportional to 18,257.70, 25,195.78 and 10,081.56 is: 13,912.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,257.70 : 25,195.78 = 10,081.56 : x
  2. Step 2: Convert to fraction form
    18,257.70/25,195.78 = 10,081.56/x
  3. Step 3: Cross multiply
    18,257.70x = 25,195.78 × 10,081.56
  4. Step 4: Simplify right side
    18,257.70x = 254,012,767.82
  5. Step 5: Solve for x
    x = 254,012,767.82/18,257.70
  6. Step 6: Final answer
    x = 13,912.64

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1.5x scale

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.