Home / 8,520.75-11,757.61-4,742.97

Finding the Fourth Proportional to 8,520.75, 11,757.61 and 4,742.97

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Solution

The fourth proportional to 8,520.75, 11,757.61 and 4,742.97 is: 6,544.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520.75 : 11,757.61 = 4,742.97 : x
  2. Step 2: Convert to fraction form
    8,520.75/11,757.61 = 4,742.97/x
  3. Step 3: Cross multiply
    8,520.75x = 11,757.61 × 4,742.97
  4. Step 4: Simplify right side
    8,520.75x = 55,765,991.50
  5. Step 5: Solve for x
    x = 55,765,991.50/8,520.75
  6. Step 6: Final answer
    x = 6,544.73

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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.