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Finding the Fourth Proportional to 8,311.44, 12,445.08 and 5,020.08

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Solution

The fourth proportional to 8,311.44, 12,445.08 and 5,020.08 is: 7,516.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311.44 : 12,445.08 = 5,020.08 : x
  2. Step 2: Convert to fraction form
    8,311.44/12,445.08 = 5,020.08/x
  3. Step 3: Cross multiply
    8,311.44x = 12,445.08 × 5,020.08
  4. Step 4: Simplify right side
    8,311.44x = 62,475,297.21
  5. Step 5: Solve for x
    x = 62,475,297.21/8,311.44
  6. Step 6: Final answer
    x = 7,516.78

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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.