Home / 8,189.16-11,297.70-5,706.60

Finding the Fourth Proportional to 8,189.16, 11,297.70 and 5,706.60

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Solution

The fourth proportional to 8,189.16, 11,297.70 and 5,706.60 is: 7,872.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,189.16 : 11,297.70 = 5,706.60 : x
  2. Step 2: Convert to fraction form
    8,189.16/11,297.70 = 5,706.60/x
  3. Step 3: Cross multiply
    8,189.16x = 11,297.70 × 5,706.60
  4. Step 4: Simplify right side
    8,189.16x = 64,471,454.82
  5. Step 5: Solve for x
    x = 64,471,454.82/8,189.16
  6. Step 6: Final answer
    x = 7,872.78

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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.