Home / 8,379.38-12,570.87-2,832.45

Finding the Fourth Proportional to 8,379.38, 12,570.87 and 2,832.45

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Solution

The fourth proportional to 8,379.38, 12,570.87 and 2,832.45 is: 4,249.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,379.38 : 12,570.87 = 2,832.45 : x
  2. Step 2: Convert to fraction form
    8,379.38/12,570.87 = 2,832.45/x
  3. Step 3: Cross multiply
    8,379.38x = 12,570.87 × 2,832.45
  4. Step 4: Simplify right side
    8,379.38x = 35,606,360.73
  5. Step 5: Solve for x
    x = 35,606,360.73/8,379.38
  6. Step 6: Final answer
    x = 4,249.29

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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.