Home / 8,479.08-12,722.22-4,099.80

Finding the Fourth Proportional to 8,479.08, 12,722.22 and 4,099.80

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Solution

The fourth proportional to 8,479.08, 12,722.22 and 4,099.80 is: 6,151.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.08 : 12,722.22 = 4,099.80 : x
  2. Step 2: Convert to fraction form
    8,479.08/12,722.22 = 4,099.80/x
  3. Step 3: Cross multiply
    8,479.08x = 12,722.22 × 4,099.80
  4. Step 4: Simplify right side
    8,479.08x = 52,158,557.56
  5. Step 5: Solve for x
    x = 52,158,557.56/8,479.08
  6. Step 6: Final answer
    x = 6,151.44

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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.