Home / 9,013.20-13,515.72-4,082.64

Finding the Fourth Proportional to 9,013.20, 13,515.72 and 4,082.64

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Solution

The fourth proportional to 9,013.20, 13,515.72 and 4,082.64 is: 6,122.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,013.20 : 13,515.72 = 4,082.64 : x
  2. Step 2: Convert to fraction form
    9,013.20/13,515.72 = 4,082.64/x
  3. Step 3: Cross multiply
    9,013.20x = 13,515.72 × 4,082.64
  4. Step 4: Simplify right side
    9,013.20x = 55,179,819.10
  5. Step 5: Solve for x
    x = 55,179,819.10/9,013.20
  6. Step 6: Final answer
    x = 6,122.11

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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.