Home / 18,408.83-27,613.23-5,261.21

Finding the Fourth Proportional to 18,408.83, 27,613.23 and 5,261.21

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Solution

The fourth proportional to 18,408.83, 27,613.23 and 5,261.21 is: 7,891.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,408.83 : 27,613.23 = 5,261.21 : x
  2. Step 2: Convert to fraction form
    18,408.83/27,613.23 = 5,261.21/x
  3. Step 3: Cross multiply
    18,408.83x = 27,613.23 × 5,261.21
  4. Step 4: Simplify right side
    18,408.83x = 145,278,883.47
  5. Step 5: Solve for x
    x = 145,278,883.47/18,408.83
  6. Step 6: Final answer
    x = 7,891.80

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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.