Home / 8,104.79-12,154.83-2,838.85

Finding the Fourth Proportional to 8,104.79, 12,154.83 and 2,838.85

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Solution

The fourth proportional to 8,104.79, 12,154.83 and 2,838.85 is: 4,257.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,104.79 : 12,154.83 = 2,838.85 : x
  2. Step 2: Convert to fraction form
    8,104.79/12,154.83 = 2,838.85/x
  3. Step 3: Cross multiply
    8,104.79x = 12,154.83 × 2,838.85
  4. Step 4: Simplify right side
    8,104.79x = 34,505,698.11
  5. Step 5: Solve for x
    x = 34,505,698.11/8,104.79
  6. Step 6: Final answer
    x = 4,257.44

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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.