Home / 7,867.60-11,800.45-4,310.75

Finding the Fourth Proportional to 7,867.60, 11,800.45 and 4,310.75

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Solution

The fourth proportional to 7,867.60, 11,800.45 and 4,310.75 is: 6,465.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.60 : 11,800.45 = 4,310.75 : x
  2. Step 2: Convert to fraction form
    7,867.60/11,800.45 = 4,310.75/x
  3. Step 3: Cross multiply
    7,867.60x = 11,800.45 × 4,310.75
  4. Step 4: Simplify right side
    7,867.60x = 50,868,824.73
  5. Step 5: Solve for x
    x = 50,868,824.73/7,867.60
  6. Step 6: Final answer
    x = 6,465.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.