Home / 12,175.35-18,260.94-3,408.24

Finding the Fourth Proportional to 12,175.35, 18,260.94 and 3,408.24

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Solution

The fourth proportional to 12,175.35, 18,260.94 and 3,408.24 is: 5,111.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,175.35 : 18,260.94 = 3,408.24 : x
  2. Step 2: Convert to fraction form
    12,175.35/18,260.94 = 3,408.24/x
  3. Step 3: Cross multiply
    12,175.35x = 18,260.94 × 3,408.24
  4. Step 4: Simplify right side
    12,175.35x = 62,237,666.15
  5. Step 5: Solve for x
    x = 62,237,666.15/12,175.35
  6. Step 6: Final answer
    x = 5,111.78

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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.