Home / 8,128.04-12,194.98-3,194.94

Finding the Fourth Proportional to 8,128.04, 12,194.98 and 3,194.94

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Solution

The fourth proportional to 8,128.04, 12,194.98 and 3,194.94 is: 4,793.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.04 : 12,194.98 = 3,194.94 : x
  2. Step 2: Convert to fraction form
    8,128.04/12,194.98 = 3,194.94/x
  3. Step 3: Cross multiply
    8,128.04x = 12,194.98 × 3,194.94
  4. Step 4: Simplify right side
    8,128.04x = 38,962,229.40
  5. Step 5: Solve for x
    x = 38,962,229.40/8,128.04
  6. Step 6: Final answer
    x = 4,793.56

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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.