Home / 8,408.72-11,609.63-5,226.77

Finding the Fourth Proportional to 8,408.72, 11,609.63 and 5,226.77

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Solution

The fourth proportional to 8,408.72, 11,609.63 and 5,226.77 is: 7,216.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408.72 : 11,609.63 = 5,226.77 : x
  2. Step 2: Convert to fraction form
    8,408.72/11,609.63 = 5,226.77/x
  3. Step 3: Cross multiply
    8,408.72x = 11,609.63 × 5,226.77
  4. Step 4: Simplify right side
    8,408.72x = 60,680,839.66
  5. Step 5: Solve for x
    x = 60,680,839.66/8,408.72
  6. Step 6: Final answer
    x = 7,216.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.