Home / 8,115.62-11,199.90-4,578.83

Finding the Fourth Proportional to 8,115.62, 11,199.90 and 4,578.83

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Solution

The fourth proportional to 8,115.62, 11,199.90 and 4,578.83 is: 6,318.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.62 : 11,199.90 = 4,578.83 : x
  2. Step 2: Convert to fraction form
    8,115.62/11,199.90 = 4,578.83/x
  3. Step 3: Cross multiply
    8,115.62x = 11,199.90 × 4,578.83
  4. Step 4: Simplify right side
    8,115.62x = 51,282,438.12
  5. Step 5: Solve for x
    x = 51,282,438.12/8,115.62
  6. Step 6: Final answer
    x = 6,318.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.