Home / 18,811.41-28,221.46-6,331.11

Finding the Fourth Proportional to 18,811.41, 28,221.46 and 6,331.11

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Solution

The fourth proportional to 18,811.41, 28,221.46 and 6,331.11 is: 9,498.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,811.41 : 28,221.46 = 6,331.11 : x
  2. Step 2: Convert to fraction form
    18,811.41/28,221.46 = 6,331.11/x
  3. Step 3: Cross multiply
    18,811.41x = 28,221.46 × 6,331.11
  4. Step 4: Simplify right side
    18,811.41x = 178,673,167.62
  5. Step 5: Solve for x
    x = 178,673,167.62/18,811.41
  6. Step 6: Final answer
    x = 9,498.13

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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.