Home / 8,218.26-12,310.99-5,090.85

Finding the Fourth Proportional to 8,218.26, 12,310.99 and 5,090.85

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Solution

The fourth proportional to 8,218.26, 12,310.99 and 5,090.85 is: 7,626.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.26 : 12,310.99 = 5,090.85 : x
  2. Step 2: Convert to fraction form
    8,218.26/12,310.99 = 5,090.85/x
  3. Step 3: Cross multiply
    8,218.26x = 12,310.99 × 5,090.85
  4. Step 4: Simplify right side
    8,218.26x = 62,673,390.71
  5. Step 5: Solve for x
    x = 62,673,390.71/8,218.26
  6. Step 6: Final answer
    x = 7,626.11

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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.