Home / 8,414.22-12,561.99-6,429.37

Finding the Fourth Proportional to 8,414.22, 12,561.99 and 6,429.37

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Solution

The fourth proportional to 8,414.22, 12,561.99 and 6,429.37 is: 9,598.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,414.22 : 12,561.99 = 6,429.37 : x
  2. Step 2: Convert to fraction form
    8,414.22/12,561.99 = 6,429.37/x
  3. Step 3: Cross multiply
    8,414.22x = 12,561.99 × 6,429.37
  4. Step 4: Simplify right side
    8,414.22x = 80,765,650.24
  5. Step 5: Solve for x
    x = 80,765,650.24/8,414.22
  6. Step 6: Final answer
    x = 9,598.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.