Home / 8,912.50-13,360.82-4,229.62

Finding the Fourth Proportional to 8,912.50, 13,360.82 and 4,229.62

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Solution

The fourth proportional to 8,912.50, 13,360.82 and 4,229.62 is: 6,340.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.50 : 13,360.82 = 4,229.62 : x
  2. Step 2: Convert to fraction form
    8,912.50/13,360.82 = 4,229.62/x
  3. Step 3: Cross multiply
    8,912.50x = 13,360.82 × 4,229.62
  4. Step 4: Simplify right side
    8,912.50x = 56,511,136.94
  5. Step 5: Solve for x
    x = 56,511,136.94/8,912.50
  6. Step 6: Final answer
    x = 6,340.66

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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.