Home / 8,128.14-12,192.30-2,284.80

Finding the Fourth Proportional to 8,128.14, 12,192.30 and 2,284.80

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Solution

The fourth proportional to 8,128.14, 12,192.30 and 2,284.80 is: 3,427.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.14 : 12,192.30 = 2,284.80 : x
  2. Step 2: Convert to fraction form
    8,128.14/12,192.30 = 2,284.80/x
  3. Step 3: Cross multiply
    8,128.14x = 12,192.30 × 2,284.80
  4. Step 4: Simplify right side
    8,128.14x = 27,856,967.04
  5. Step 5: Solve for x
    x = 27,856,967.04/8,128.14
  6. Step 6: Final answer
    x = 3,427.23

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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.