Home / 8,110.76-12,149.88-3,722.18

Finding the Fourth Proportional to 8,110.76, 12,149.88 and 3,722.18

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Solution

The fourth proportional to 8,110.76, 12,149.88 and 3,722.18 is: 5,575.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,110.76 : 12,149.88 = 3,722.18 : x
  2. Step 2: Convert to fraction form
    8,110.76/12,149.88 = 3,722.18/x
  3. Step 3: Cross multiply
    8,110.76x = 12,149.88 × 3,722.18
  4. Step 4: Simplify right side
    8,110.76x = 45,224,040.34
  5. Step 5: Solve for x
    x = 45,224,040.34/8,110.76
  6. Step 6: Final answer
    x = 5,575.81

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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.