Home / 6,126.24-8,451.20-4,000.80

Finding the Fourth Proportional to 6,126.24, 8,451.20 and 4,000.80

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Solution

The fourth proportional to 6,126.24, 8,451.20 and 4,000.80 is: 5,519.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,126.24 : 8,451.20 = 4,000.80 : x
  2. Step 2: Convert to fraction form
    6,126.24/8,451.20 = 4,000.80/x
  3. Step 3: Cross multiply
    6,126.24x = 8,451.20 × 4,000.80
  4. Step 4: Simplify right side
    6,126.24x = 33,811,560.96
  5. Step 5: Solve for x
    x = 33,811,560.96/6,126.24
  6. Step 6: Final answer
    x = 5,519.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.