Home / 7,408.42-11,113.22-2,478.09

Finding the Fourth Proportional to 7,408.42, 11,113.22 and 2,478.09

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Solution

The fourth proportional to 7,408.42, 11,113.22 and 2,478.09 is: 3,717.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.42 : 11,113.22 = 2,478.09 : x
  2. Step 2: Convert to fraction form
    7,408.42/11,113.22 = 2,478.09/x
  3. Step 3: Cross multiply
    7,408.42x = 11,113.22 × 2,478.09
  4. Step 4: Simplify right side
    7,408.42x = 27,539,559.35
  5. Step 5: Solve for x
    x = 27,539,559.35/7,408.42
  6. Step 6: Final answer
    x = 3,717.33

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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.