Home / 8,112.62-12,169.04-2,847.42

Finding the Fourth Proportional to 8,112.62, 12,169.04 and 2,847.42

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Solution

The fourth proportional to 8,112.62, 12,169.04 and 2,847.42 is: 4,271.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.62 : 12,169.04 = 2,847.42 : x
  2. Step 2: Convert to fraction form
    8,112.62/12,169.04 = 2,847.42/x
  3. Step 3: Cross multiply
    8,112.62x = 12,169.04 × 2,847.42
  4. Step 4: Simplify right side
    8,112.62x = 34,650,353.64
  5. Step 5: Solve for x
    x = 34,650,353.64/8,112.62
  6. Step 6: Final answer
    x = 4,271.17

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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.