Home / 8,115.53-12,174.79-2,570.27

Finding the Fourth Proportional to 8,115.53, 12,174.79 and 2,570.27

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Solution

The fourth proportional to 8,115.53, 12,174.79 and 2,570.27 is: 3,855.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.53 : 12,174.79 = 2,570.27 : x
  2. Step 2: Convert to fraction form
    8,115.53/12,174.79 = 2,570.27/x
  3. Step 3: Cross multiply
    8,115.53x = 12,174.79 × 2,570.27
  4. Step 4: Simplify right side
    8,115.53x = 31,292,436.62
  5. Step 5: Solve for x
    x = 31,292,436.62/8,115.53
  6. Step 6: Final answer
    x = 3,855.87

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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.