Home / 8,109.35-12,159.97-3,723.06

Finding the Fourth Proportional to 8,109.35, 12,159.97 and 3,723.06

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Solution

The fourth proportional to 8,109.35, 12,159.97 and 3,723.06 is: 5,582.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.35 : 12,159.97 = 3,723.06 : x
  2. Step 2: Convert to fraction form
    8,109.35/12,159.97 = 3,723.06/x
  3. Step 3: Cross multiply
    8,109.35x = 12,159.97 × 3,723.06
  4. Step 4: Simplify right side
    8,109.35x = 45,272,297.91
  5. Step 5: Solve for x
    x = 45,272,297.91/8,109.35
  6. Step 6: Final answer
    x = 5,582.73

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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.