Home / 7,920.42-11,877.12-2,372.73

Finding the Fourth Proportional to 7,920.42, 11,877.12 and 2,372.73

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Solution

The fourth proportional to 7,920.42, 11,877.12 and 2,372.73 is: 3,558.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,920.42 : 11,877.12 = 2,372.73 : x
  2. Step 2: Convert to fraction form
    7,920.42/11,877.12 = 2,372.73/x
  3. Step 3: Cross multiply
    7,920.42x = 11,877.12 × 2,372.73
  4. Step 4: Simplify right side
    7,920.42x = 28,181,198.94
  5. Step 5: Solve for x
    x = 28,181,198.94/7,920.42
  6. Step 6: Final answer
    x = 3,558.04

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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.