Home / 8,125.57-12,189.27-3,194.56

Finding the Fourth Proportional to 8,125.57, 12,189.27 and 3,194.56

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Solution

The fourth proportional to 8,125.57, 12,189.27 and 3,194.56 is: 4,792.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.57 : 12,189.27 = 3,194.56 : x
  2. Step 2: Convert to fraction form
    8,125.57/12,189.27 = 3,194.56/x
  3. Step 3: Cross multiply
    8,125.57x = 12,189.27 × 3,194.56
  4. Step 4: Simplify right side
    8,125.57x = 38,939,354.37
  5. Step 5: Solve for x
    x = 38,939,354.37/8,125.57
  6. Step 6: Final answer
    x = 4,792.20

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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.