Home / 8,115.88-12,169.36-4,997.05

Finding the Fourth Proportional to 8,115.88, 12,169.36 and 4,997.05

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Solution

The fourth proportional to 8,115.88, 12,169.36 and 4,997.05 is: 7,492.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.88 : 12,169.36 = 4,997.05 : x
  2. Step 2: Convert to fraction form
    8,115.88/12,169.36 = 4,997.05/x
  3. Step 3: Cross multiply
    8,115.88x = 12,169.36 × 4,997.05
  4. Step 4: Simplify right side
    8,115.88x = 60,810,900.39
  5. Step 5: Solve for x
    x = 60,810,900.39/8,115.88
  6. Step 6: Final answer
    x = 7,492.83

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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.