Home / 8,019.78-12,028.76-2,176.86

Finding the Fourth Proportional to 8,019.78, 12,028.76 and 2,176.86

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Solution

The fourth proportional to 8,019.78, 12,028.76 and 2,176.86 is: 3,265.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,019.78 : 12,028.76 = 2,176.86 : x
  2. Step 2: Convert to fraction form
    8,019.78/12,028.76 = 2,176.86/x
  3. Step 3: Cross multiply
    8,019.78x = 12,028.76 × 2,176.86
  4. Step 4: Simplify right side
    8,019.78x = 26,184,926.49
  5. Step 5: Solve for x
    x = 26,184,926.49/8,019.78
  6. Step 6: Final answer
    x = 3,265.04

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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.