Home / 7,845.22-11,767.68-3,165.11

Finding the Fourth Proportional to 7,845.22, 11,767.68 and 3,165.11

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Solution

The fourth proportional to 7,845.22, 11,767.68 and 3,165.11 is: 4,747.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.22 : 11,767.68 = 3,165.11 : x
  2. Step 2: Convert to fraction form
    7,845.22/11,767.68 = 3,165.11/x
  3. Step 3: Cross multiply
    7,845.22x = 11,767.68 × 3,165.11
  4. Step 4: Simplify right side
    7,845.22x = 37,245,942.81
  5. Step 5: Solve for x
    x = 37,245,942.81/7,845.22
  6. Step 6: Final answer
    x = 4,747.60

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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.