Home / 8,144.40-12,205.80-4,247.76

Finding the Fourth Proportional to 8,144.40, 12,205.80 and 4,247.76

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Solution

The fourth proportional to 8,144.40, 12,205.80 and 4,247.76 is: 6,366.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,144.40 : 12,205.80 = 4,247.76 : x
  2. Step 2: Convert to fraction form
    8,144.40/12,205.80 = 4,247.76/x
  3. Step 3: Cross multiply
    8,144.40x = 12,205.80 × 4,247.76
  4. Step 4: Simplify right side
    8,144.40x = 51,847,309.01
  5. Step 5: Solve for x
    x = 51,847,309.01/8,144.40
  6. Step 6: Final answer
    x = 6,366.01

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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.