Home / 8,120.82-11,207.25-4,582.74

Finding the Fourth Proportional to 8,120.82, 11,207.25 and 4,582.74

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Solution

The fourth proportional to 8,120.82, 11,207.25 and 4,582.74 is: 6,324.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120.82 : 11,207.25 = 4,582.74 : x
  2. Step 2: Convert to fraction form
    8,120.82/11,207.25 = 4,582.74/x
  3. Step 3: Cross multiply
    8,120.82x = 11,207.25 × 4,582.74
  4. Step 4: Simplify right side
    8,120.82x = 51,359,912.87
  5. Step 5: Solve for x
    x = 51,359,912.87/8,120.82
  6. Step 6: Final answer
    x = 6,324.47

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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.