Home / 8,100.24-12,143.52-4,192.80

Finding the Fourth Proportional to 8,100.24, 12,143.52 and 4,192.80

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Solution

The fourth proportional to 8,100.24, 12,143.52 and 4,192.80 is: 6,285.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,100.24 : 12,143.52 = 4,192.80 : x
  2. Step 2: Convert to fraction form
    8,100.24/12,143.52 = 4,192.80/x
  3. Step 3: Cross multiply
    8,100.24x = 12,143.52 × 4,192.80
  4. Step 4: Simplify right side
    8,100.24x = 50,915,350.66
  5. Step 5: Solve for x
    x = 50,915,350.66/8,100.24
  6. Step 6: Final answer
    x = 6,285.66

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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.