Home / 8,082.45-12,123.63-2,238.90

Finding the Fourth Proportional to 8,082.45, 12,123.63 and 2,238.90

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Solution

The fourth proportional to 8,082.45, 12,123.63 and 2,238.90 is: 3,358.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,082.45 : 12,123.63 = 2,238.90 : x
  2. Step 2: Convert to fraction form
    8,082.45/12,123.63 = 2,238.90/x
  3. Step 3: Cross multiply
    8,082.45x = 12,123.63 × 2,238.90
  4. Step 4: Simplify right side
    8,082.45x = 27,143,595.21
  5. Step 5: Solve for x
    x = 27,143,595.21/8,082.45
  6. Step 6: Final answer
    x = 3,358.34

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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.