Home / 8,351.22-11,520.66-5,519.70

Finding the Fourth Proportional to 8,351.22, 11,520.66 and 5,519.70

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Solution

The fourth proportional to 8,351.22, 11,520.66 and 5,519.70 is: 7,614.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,351.22 : 11,520.66 = 5,519.70 : x
  2. Step 2: Convert to fraction form
    8,351.22/11,520.66 = 5,519.70/x
  3. Step 3: Cross multiply
    8,351.22x = 11,520.66 × 5,519.70
  4. Step 4: Simplify right side
    8,351.22x = 63,590,587.00
  5. Step 5: Solve for x
    x = 63,590,587.00/8,351.22
  6. Step 6: Final answer
    x = 7,614.53

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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.