Home / 18,122.31-27,183.13-7,446.39

Finding the Fourth Proportional to 18,122.31, 27,183.13 and 7,446.39

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Solution

The fourth proportional to 18,122.31, 27,183.13 and 7,446.39 is: 11,169.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122.31 : 27,183.13 = 7,446.39 : x
  2. Step 2: Convert to fraction form
    18,122.31/27,183.13 = 7,446.39/x
  3. Step 3: Cross multiply
    18,122.31x = 27,183.13 × 7,446.39
  4. Step 4: Simplify right side
    18,122.31x = 202,416,150.17
  5. Step 5: Solve for x
    x = 202,416,150.17/18,122.31
  6. Step 6: Final answer
    x = 11,169.45

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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.