Home / 8,119.14-11,212.22-6,331.57

Finding the Fourth Proportional to 8,119.14, 11,212.22 and 6,331.57

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Solution

The fourth proportional to 8,119.14, 11,212.22 and 6,331.57 is: 8,743.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.14 : 11,212.22 = 6,331.57 : x
  2. Step 2: Convert to fraction form
    8,119.14/11,212.22 = 6,331.57/x
  3. Step 3: Cross multiply
    8,119.14x = 11,212.22 × 6,331.57
  4. Step 4: Simplify right side
    8,119.14x = 70,990,943.58
  5. Step 5: Solve for x
    x = 70,990,943.58/8,119.14
  6. Step 6: Final answer
    x = 8,743.66

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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.