Home / 8,571.78-12,856.62-2,331.54

Finding the Fourth Proportional to 8,571.78, 12,856.62 and 2,331.54

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Solution

The fourth proportional to 8,571.78, 12,856.62 and 2,331.54 is: 3,497.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,571.78 : 12,856.62 = 2,331.54 : x
  2. Step 2: Convert to fraction form
    8,571.78/12,856.62 = 2,331.54/x
  3. Step 3: Cross multiply
    8,571.78x = 12,856.62 × 2,331.54
  4. Step 4: Simplify right side
    8,571.78x = 29,975,723.79
  5. Step 5: Solve for x
    x = 29,975,723.79/8,571.78
  6. Step 6: Final answer
    x = 3,497.02

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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.