Home / 8,452.32-12,678.48-2,211.81

Finding the Fourth Proportional to 8,452.32, 12,678.48 and 2,211.81

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Solution

The fourth proportional to 8,452.32, 12,678.48 and 2,211.81 is: 3,317.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,452.32 : 12,678.48 = 2,211.81 : x
  2. Step 2: Convert to fraction form
    8,452.32/12,678.48 = 2,211.81/x
  3. Step 3: Cross multiply
    8,452.32x = 12,678.48 × 2,211.81
  4. Step 4: Simplify right side
    8,452.32x = 28,042,388.85
  5. Step 5: Solve for x
    x = 28,042,388.85/8,452.32
  6. Step 6: Final answer
    x = 3,317.72

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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.