Home / 12,082.38-18,123.57-5,510.45

Finding the Fourth Proportional to 12,082.38, 18,123.57 and 5,510.45

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Solution

The fourth proportional to 12,082.38, 18,123.57 and 5,510.45 is: 8,265.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,082.38 : 18,123.57 = 5,510.45 : x
  2. Step 2: Convert to fraction form
    12,082.38/18,123.57 = 5,510.45/x
  3. Step 3: Cross multiply
    12,082.38x = 18,123.57 × 5,510.45
  4. Step 4: Simplify right side
    12,082.38x = 99,868,935.69
  5. Step 5: Solve for x
    x = 99,868,935.69/12,082.38
  6. Step 6: Final answer
    x = 8,265.67

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Similar ratio
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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.