Home / 18,278.44-27,428.94-7,183.18

Finding the Fourth Proportional to 18,278.44, 27,428.94 and 7,183.18

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Solution

The fourth proportional to 18,278.44, 27,428.94 and 7,183.18 is: 10,779.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,278.44 : 27,428.94 = 7,183.18 : x
  2. Step 2: Convert to fraction form
    18,278.44/27,428.94 = 7,183.18/x
  3. Step 3: Cross multiply
    18,278.44x = 27,428.94 × 7,183.18
  4. Step 4: Simplify right side
    18,278.44x = 197,027,013.23
  5. Step 5: Solve for x
    x = 197,027,013.23/18,278.44
  6. Step 6: Final answer
    x = 10,779.20

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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.