Home / 18,218.82-27,317.16-7,123.44

Finding the Fourth Proportional to 18,218.82, 27,317.16 and 7,123.44

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Solution

The fourth proportional to 18,218.82, 27,317.16 and 7,123.44 is: 10,680.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218.82 : 27,317.16 = 7,123.44 : x
  2. Step 2: Convert to fraction form
    18,218.82/27,317.16 = 7,123.44/x
  3. Step 3: Cross multiply
    18,218.82x = 27,317.16 × 7,123.44
  4. Step 4: Simplify right side
    18,218.82x = 194,592,150.23
  5. Step 5: Solve for x
    x = 194,592,150.23/18,218.82
  6. Step 6: Final answer
    x = 10,680.83

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1.5x scale

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.