Home / 18,398.44-25,389.04-10,221.56

Finding the Fourth Proportional to 18,398.44, 25,389.04 and 10,221.56

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Solution

The fourth proportional to 18,398.44, 25,389.04 and 10,221.56 is: 14,105.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,398.44 : 25,389.04 = 10,221.56 : x
  2. Step 2: Convert to fraction form
    18,398.44/25,389.04 = 10,221.56/x
  3. Step 3: Cross multiply
    18,398.44x = 25,389.04 × 10,221.56
  4. Step 4: Simplify right side
    18,398.44x = 259,515,595.70
  5. Step 5: Solve for x
    x = 259,515,595.70/18,398.44
  6. Step 6: Final answer
    x = 14,105.30

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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.