Home / 8,311.21-12,468.33-5,020.38

Finding the Fourth Proportional to 8,311.21, 12,468.33 and 5,020.38

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Solution

The fourth proportional to 8,311.21, 12,468.33 and 5,020.38 is: 7,531.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311.21 : 12,468.33 = 5,020.38 : x
  2. Step 2: Convert to fraction form
    8,311.21/12,468.33 = 5,020.38/x
  3. Step 3: Cross multiply
    8,311.21x = 12,468.33 × 5,020.38
  4. Step 4: Simplify right side
    8,311.21x = 62,595,754.57
  5. Step 5: Solve for x
    x = 62,595,754.57/8,311.21
  6. Step 6: Final answer
    x = 7,531.49

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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.