Home / 8,081.45-12,122.46-2,238.50

Finding the Fourth Proportional to 8,081.45, 12,122.46 and 2,238.50

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Solution

The fourth proportional to 8,081.45, 12,122.46 and 2,238.50 is: 3,357.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.45 : 12,122.46 = 2,238.50 : x
  2. Step 2: Convert to fraction form
    8,081.45/12,122.46 = 2,238.50/x
  3. Step 3: Cross multiply
    8,081.45x = 12,122.46 × 2,238.50
  4. Step 4: Simplify right side
    8,081.45x = 27,136,126.71
  5. Step 5: Solve for x
    x = 27,136,126.71/8,081.45
  6. Step 6: Final answer
    x = 3,357.83

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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.