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Finding the Fourth Proportional to 8,573.58, 12,861.29 and 2,728.83

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Solution

The fourth proportional to 8,573.58, 12,861.29 and 2,728.83 is: 4,093.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,573.58 : 12,861.29 = 2,728.83 : x
  2. Step 2: Convert to fraction form
    8,573.58/12,861.29 = 2,728.83/x
  3. Step 3: Cross multiply
    8,573.58x = 12,861.29 × 2,728.83
  4. Step 4: Simplify right side
    8,573.58x = 35,096,273.99
  5. Step 5: Solve for x
    x = 35,096,273.99/8,573.58
  6. Step 6: Final answer
    x = 4,093.54

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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.