Home / 8,764.23-13,145.82-2,920.85

Finding the Fourth Proportional to 8,764.23, 13,145.82 and 2,920.85

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Solution

The fourth proportional to 8,764.23, 13,145.82 and 2,920.85 is: 4,381.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,764.23 : 13,145.82 = 2,920.85 : x
  2. Step 2: Convert to fraction form
    8,764.23/13,145.82 = 2,920.85/x
  3. Step 3: Cross multiply
    8,764.23x = 13,145.82 × 2,920.85
  4. Step 4: Simplify right side
    8,764.23x = 38,396,902.62
  5. Step 5: Solve for x
    x = 38,396,902.62/8,764.23
  6. Step 6: Final answer
    x = 4,381.09

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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.