Home / 8,158.55-12,235.91-3,994.38

Finding the Fourth Proportional to 8,158.55, 12,235.91 and 3,994.38

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Solution

The fourth proportional to 8,158.55, 12,235.91 and 3,994.38 is: 5,990.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,158.55 : 12,235.91 = 3,994.38 : x
  2. Step 2: Convert to fraction form
    8,158.55/12,235.91 = 3,994.38/x
  3. Step 3: Cross multiply
    8,158.55x = 12,235.91 × 3,994.38
  4. Step 4: Simplify right side
    8,158.55x = 48,874,854.21
  5. Step 5: Solve for x
    x = 48,874,854.21/8,158.55
  6. Step 6: Final answer
    x = 5,990.63

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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.