Home / 8,108.89-11,180.68-5,719.26

Finding the Fourth Proportional to 8,108.89, 11,180.68 and 5,719.26

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Solution

The fourth proportional to 8,108.89, 11,180.68 and 5,719.26 is: 7,885.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.89 : 11,180.68 = 5,719.26 : x
  2. Step 2: Convert to fraction form
    8,108.89/11,180.68 = 5,719.26/x
  3. Step 3: Cross multiply
    8,108.89x = 11,180.68 × 5,719.26
  4. Step 4: Simplify right side
    8,108.89x = 63,945,188.27
  5. Step 5: Solve for x
    x = 63,945,188.27/8,108.89
  6. Step 6: Final answer
    x = 7,885.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.