Home / 12,082.96-16,675.68-6,778.72

Finding the Fourth Proportional to 12,082.96, 16,675.68 and 6,778.72

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Solution

The fourth proportional to 12,082.96, 16,675.68 and 6,778.72 is: 9,355.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,082.96 : 16,675.68 = 6,778.72 : x
  2. Step 2: Convert to fraction form
    12,082.96/16,675.68 = 6,778.72/x
  3. Step 3: Cross multiply
    12,082.96x = 16,675.68 × 6,778.72
  4. Step 4: Simplify right side
    12,082.96x = 113,039,765.53
  5. Step 5: Solve for x
    x = 113,039,765.53/12,082.96
  6. Step 6: Final answer
    x = 9,355.30

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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.