Home / 8,215.96-12,330.82-4,269.64

Finding the Fourth Proportional to 8,215.96, 12,330.82 and 4,269.64

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Solution

The fourth proportional to 8,215.96, 12,330.82 and 4,269.64 is: 6,408.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.96 : 12,330.82 = 4,269.64 : x
  2. Step 2: Convert to fraction form
    8,215.96/12,330.82 = 4,269.64/x
  3. Step 3: Cross multiply
    8,215.96x = 12,330.82 × 4,269.64
  4. Step 4: Simplify right side
    8,215.96x = 52,648,162.30
  5. Step 5: Solve for x
    x = 52,648,162.30/8,215.96
  6. Step 6: Final answer
    x = 6,408.04

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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.