Home / 7,910.82-11,860.71-4,791.65

Finding the Fourth Proportional to 7,910.82, 11,860.71 and 4,791.65

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Solution

The fourth proportional to 7,910.82, 11,860.71 and 4,791.65 is: 7,184.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,910.82 : 11,860.71 = 4,791.65 : x
  2. Step 2: Convert to fraction form
    7,910.82/11,860.71 = 4,791.65/x
  3. Step 3: Cross multiply
    7,910.82x = 11,860.71 × 4,791.65
  4. Step 4: Simplify right side
    7,910.82x = 56,832,311.77
  5. Step 5: Solve for x
    x = 56,832,311.77/7,910.82
  6. Step 6: Final answer
    x = 7,184.12

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1.5x scale

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.