Home / 8,108.60-12,168.30-3,723.80

Finding the Fourth Proportional to 8,108.60, 12,168.30 and 3,723.80

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Solution

The fourth proportional to 8,108.60, 12,168.30 and 3,723.80 is: 5,588.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.60 : 12,168.30 = 3,723.80 : x
  2. Step 2: Convert to fraction form
    8,108.60/12,168.30 = 3,723.80/x
  3. Step 3: Cross multiply
    8,108.60x = 12,168.30 × 3,723.80
  4. Step 4: Simplify right side
    8,108.60x = 45,312,315.54
  5. Step 5: Solve for x
    x = 45,312,315.54/8,108.60
  6. Step 6: Final answer
    x = 5,588.18

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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.