Home / 8,098.26-12,149.77-3,420.24

Finding the Fourth Proportional to 8,098.26, 12,149.77 and 3,420.24

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Solution

The fourth proportional to 8,098.26, 12,149.77 and 3,420.24 is: 5,131.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,098.26 : 12,149.77 = 3,420.24 : x
  2. Step 2: Convert to fraction form
    8,098.26/12,149.77 = 3,420.24/x
  3. Step 3: Cross multiply
    8,098.26x = 12,149.77 × 3,420.24
  4. Step 4: Simplify right side
    8,098.26x = 41,555,129.34
  5. Step 5: Solve for x
    x = 41,555,129.34/8,098.26
  6. Step 6: Final answer
    x = 5,131.37

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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.