Home / 8,207.91-12,313.81-2,661.25

Finding the Fourth Proportional to 8,207.91, 12,313.81 and 2,661.25

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Solution

The fourth proportional to 8,207.91, 12,313.81 and 2,661.25 is: 3,992.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,207.91 : 12,313.81 = 2,661.25 : x
  2. Step 2: Convert to fraction form
    8,207.91/12,313.81 = 2,661.25/x
  3. Step 3: Cross multiply
    8,207.91x = 12,313.81 × 2,661.25
  4. Step 4: Simplify right side
    8,207.91x = 32,770,113.56
  5. Step 5: Solve for x
    x = 32,770,113.56/8,207.91
  6. Step 6: Final answer
    x = 3,992.51

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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.