Home / 12,379.05-18,569.67-3,494.44

Finding the Fourth Proportional to 12,379.05, 18,569.67 and 3,494.44

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Solution

The fourth proportional to 12,379.05, 18,569.67 and 3,494.44 is: 5,241.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379.05 : 18,569.67 = 3,494.44 : x
  2. Step 2: Convert to fraction form
    12,379.05/18,569.67 = 3,494.44/x
  3. Step 3: Cross multiply
    12,379.05x = 18,569.67 × 3,494.44
  4. Step 4: Simplify right side
    12,379.05x = 64,890,551.21
  5. Step 5: Solve for x
    x = 64,890,551.21/12,379.05
  6. Step 6: Final answer
    x = 5,241.97

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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.