Home / 8,128.05-12,192.84-2,284.65

Finding the Fourth Proportional to 8,128.05, 12,192.84 and 2,284.65

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Solution

The fourth proportional to 8,128.05, 12,192.84 and 2,284.65 is: 3,427.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.05 : 12,192.84 = 2,284.65 : x
  2. Step 2: Convert to fraction form
    8,128.05/12,192.84 = 2,284.65/x
  3. Step 3: Cross multiply
    8,128.05x = 12,192.84 × 2,284.65
  4. Step 4: Simplify right side
    8,128.05x = 27,856,371.91
  5. Step 5: Solve for x
    x = 27,856,371.91/8,128.05
  6. Step 6: Final answer
    x = 3,427.19

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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.