Home / 7,845.28-11,767.77-3,165.19

Finding the Fourth Proportional to 7,845.28, 11,767.77 and 3,165.19

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Solution

The fourth proportional to 7,845.28, 11,767.77 and 3,165.19 is: 4,747.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.28 : 11,767.77 = 3,165.19 : x
  2. Step 2: Convert to fraction form
    7,845.28/11,767.77 = 3,165.19/x
  3. Step 3: Cross multiply
    7,845.28x = 11,767.77 × 3,165.19
  4. Step 4: Simplify right side
    7,845.28x = 37,247,227.93
  5. Step 5: Solve for x
    x = 37,247,227.93/7,845.28
  6. Step 6: Final answer
    x = 4,747.72

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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.