Home / 8,207.57-12,315.38-5,086.75

Finding the Fourth Proportional to 8,207.57, 12,315.38 and 5,086.75

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Solution

The fourth proportional to 8,207.57, 12,315.38 and 5,086.75 is: 7,632.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,207.57 : 12,315.38 = 5,086.75 : x
  2. Step 2: Convert to fraction form
    8,207.57/12,315.38 = 5,086.75/x
  3. Step 3: Cross multiply
    8,207.57x = 12,315.38 × 5,086.75
  4. Step 4: Simplify right side
    8,207.57x = 62,645,172.20
  5. Step 5: Solve for x
    x = 62,645,172.20/8,207.57
  6. Step 6: Final answer
    x = 7,632.61

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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.