Home / 7,922.16-11,871.90-4,452.12

Finding the Fourth Proportional to 7,922.16, 11,871.90 and 4,452.12

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Solution

The fourth proportional to 7,922.16, 11,871.90 and 4,452.12 is: 6,671.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,922.16 : 11,871.90 = 4,452.12 : x
  2. Step 2: Convert to fraction form
    7,922.16/11,871.90 = 4,452.12/x
  3. Step 3: Cross multiply
    7,922.16x = 11,871.90 × 4,452.12
  4. Step 4: Simplify right side
    7,922.16x = 52,855,123.43
  5. Step 5: Solve for x
    x = 52,855,123.43/7,922.16
  6. Step 6: Final answer
    x = 6,671.81

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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.