Home / 8,352.18-12,520.82-3,161.70

Finding the Fourth Proportional to 8,352.18, 12,520.82 and 3,161.70

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Solution

The fourth proportional to 8,352.18, 12,520.82 and 3,161.70 is: 4,739.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,352.18 : 12,520.82 = 3,161.70 : x
  2. Step 2: Convert to fraction form
    8,352.18/12,520.82 = 3,161.70/x
  3. Step 3: Cross multiply
    8,352.18x = 12,520.82 × 3,161.70
  4. Step 4: Simplify right side
    8,352.18x = 39,587,060.79
  5. Step 5: Solve for x
    x = 39,587,060.79/8,352.18
  6. Step 6: Final answer
    x = 4,739.73

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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.