Home / 7,620.82-11,429.34-5,170.84

Finding the Fourth Proportional to 7,620.82, 11,429.34 and 5,170.84

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Solution

The fourth proportional to 7,620.82, 11,429.34 and 5,170.84 is: 7,754.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.82 : 11,429.34 = 5,170.84 : x
  2. Step 2: Convert to fraction form
    7,620.82/11,429.34 = 5,170.84/x
  3. Step 3: Cross multiply
    7,620.82x = 11,429.34 × 5,170.84
  4. Step 4: Simplify right side
    7,620.82x = 59,099,240.48
  5. Step 5: Solve for x
    x = 59,099,240.48/7,620.82
  6. Step 6: Final answer
    x = 7,754.97

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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.