Home / 8,115.14-12,167.84-2,922.23

Finding the Fourth Proportional to 8,115.14, 12,167.84 and 2,922.23

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Solution

The fourth proportional to 8,115.14, 12,167.84 and 2,922.23 is: 4,381.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.14 : 12,167.84 = 2,922.23 : x
  2. Step 2: Convert to fraction form
    8,115.14/12,167.84 = 2,922.23/x
  3. Step 3: Cross multiply
    8,115.14x = 12,167.84 × 2,922.23
  4. Step 4: Simplify right side
    8,115.14x = 35,557,151.63
  5. Step 5: Solve for x
    x = 35,557,151.63/8,115.14
  6. Step 6: Final answer
    x = 4,381.58

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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.