Home / 8,512.89-12,767.30-3,579.99

Finding the Fourth Proportional to 8,512.89, 12,767.30 and 3,579.99

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Solution

The fourth proportional to 8,512.89, 12,767.30 and 3,579.99 is: 5,369.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,512.89 : 12,767.30 = 3,579.99 : x
  2. Step 2: Convert to fraction form
    8,512.89/12,767.30 = 3,579.99/x
  3. Step 3: Cross multiply
    8,512.89x = 12,767.30 × 3,579.99
  4. Step 4: Simplify right side
    8,512.89x = 45,706,806.33
  5. Step 5: Solve for x
    x = 45,706,806.33/8,512.89
  6. Step 6: Final answer
    x = 5,369.13

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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.