Home / 8,154.12-12,214.98-3,765.54

Finding the Fourth Proportional to 8,154.12, 12,214.98 and 3,765.54

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Solution

The fourth proportional to 8,154.12, 12,214.98 and 3,765.54 is: 5,640.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,154.12 : 12,214.98 = 3,765.54 : x
  2. Step 2: Convert to fraction form
    8,154.12/12,214.98 = 3,765.54/x
  3. Step 3: Cross multiply
    8,154.12x = 12,214.98 × 3,765.54
  4. Step 4: Simplify right side
    8,154.12x = 45,995,995.79
  5. Step 5: Solve for x
    x = 45,995,995.79/8,154.12
  6. Step 6: Final answer
    x = 5,640.83

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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.