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Finding the Fourth Proportional to 8,063.76, 12,069.60 and 4,162.80

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Solution

The fourth proportional to 8,063.76, 12,069.60 and 4,162.80 is: 6,230.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,063.76 : 12,069.60 = 4,162.80 : x
  2. Step 2: Convert to fraction form
    8,063.76/12,069.60 = 4,162.80/x
  3. Step 3: Cross multiply
    8,063.76x = 12,069.60 × 4,162.80
  4. Step 4: Simplify right side
    8,063.76x = 50,243,330.88
  5. Step 5: Solve for x
    x = 50,243,330.88/8,063.76
  6. Step 6: Final answer
    x = 6,230.76

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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.