Home / 12,249.82-18,379.05-4,459.42

Finding the Fourth Proportional to 12,249.82, 18,379.05 and 4,459.42

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Solution

The fourth proportional to 12,249.82, 18,379.05 and 4,459.42 is: 6,690.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,249.82 : 18,379.05 = 4,459.42 : x
  2. Step 2: Convert to fraction form
    12,249.82/18,379.05 = 4,459.42/x
  3. Step 3: Cross multiply
    12,249.82x = 18,379.05 × 4,459.42
  4. Step 4: Simplify right side
    12,249.82x = 81,959,903.15
  5. Step 5: Solve for x
    x = 81,959,903.15/12,249.82
  6. Step 6: Final answer
    x = 6,690.70

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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.