Home / 7,472.24-10,311.94-4,115.22

Finding the Fourth Proportional to 7,472.24, 10,311.94 and 4,115.22

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Solution

The fourth proportional to 7,472.24, 10,311.94 and 4,115.22 is: 5,679.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,472.24 : 10,311.94 = 4,115.22 : x
  2. Step 2: Convert to fraction form
    7,472.24/10,311.94 = 4,115.22/x
  3. Step 3: Cross multiply
    7,472.24x = 10,311.94 × 4,115.22
  4. Step 4: Simplify right side
    7,472.24x = 42,435,901.73
  5. Step 5: Solve for x
    x = 42,435,901.73/7,472.24
  6. Step 6: Final answer
    x = 5,679.14

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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.