Home / 8,120.22-12,180.76-2,573.99

Finding the Fourth Proportional to 8,120.22, 12,180.76 and 2,573.99

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Solution

The fourth proportional to 8,120.22, 12,180.76 and 2,573.99 is: 3,861.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120.22 : 12,180.76 = 2,573.99 : x
  2. Step 2: Convert to fraction form
    8,120.22/12,180.76 = 2,573.99/x
  3. Step 3: Cross multiply
    8,120.22x = 12,180.76 × 2,573.99
  4. Step 4: Simplify right side
    8,120.22x = 31,353,174.15
  5. Step 5: Solve for x
    x = 31,353,174.15/8,120.22
  6. Step 6: Final answer
    x = 3,861.13

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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.