Home / 7,965.14-11,951.62-5,640.10

Finding the Fourth Proportional to 7,965.14, 11,951.62 and 5,640.10

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Solution

The fourth proportional to 7,965.14, 11,951.62 and 5,640.10 is: 8,462.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,965.14 : 11,951.62 = 5,640.10 : x
  2. Step 2: Convert to fraction form
    7,965.14/11,951.62 = 5,640.10/x
  3. Step 3: Cross multiply
    7,965.14x = 11,951.62 × 5,640.10
  4. Step 4: Simplify right side
    7,965.14x = 67,408,287.98
  5. Step 5: Solve for x
    x = 67,408,287.98/7,965.14
  6. Step 6: Final answer
    x = 8,462.92

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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.