Home / 8,631.62-11,914.20-5,606.66

Finding the Fourth Proportional to 8,631.62, 11,914.20 and 5,606.66

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Solution

The fourth proportional to 8,631.62, 11,914.20 and 5,606.66 is: 7,738.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631.62 : 11,914.20 = 5,606.66 : x
  2. Step 2: Convert to fraction form
    8,631.62/11,914.20 = 5,606.66/x
  3. Step 3: Cross multiply
    8,631.62x = 11,914.20 × 5,606.66
  4. Step 4: Simplify right side
    8,631.62x = 66,798,868.57
  5. Step 5: Solve for x
    x = 66,798,868.57/8,631.62
  6. Step 6: Final answer
    x = 7,738.86

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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.