Home / 7,961.56-11,919.81-6,085.30

Finding the Fourth Proportional to 7,961.56, 11,919.81 and 6,085.30

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Solution

The fourth proportional to 7,961.56, 11,919.81 and 6,085.30 is: 9,110.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.56 : 11,919.81 = 6,085.30 : x
  2. Step 2: Convert to fraction form
    7,961.56/11,919.81 = 6,085.30/x
  3. Step 3: Cross multiply
    7,961.56x = 11,919.81 × 6,085.30
  4. Step 4: Simplify right side
    7,961.56x = 72,535,619.79
  5. Step 5: Solve for x
    x = 72,535,619.79/7,961.56
  6. Step 6: Final answer
    x = 9,110.73

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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.