Home / 7,486.43-11,229.68-1,939.39

Finding the Fourth Proportional to 7,486.43, 11,229.68 and 1,939.39

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Solution

The fourth proportional to 7,486.43, 11,229.68 and 1,939.39 is: 2,909.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.43 : 11,229.68 = 1,939.39 : x
  2. Step 2: Convert to fraction form
    7,486.43/11,229.68 = 1,939.39/x
  3. Step 3: Cross multiply
    7,486.43x = 11,229.68 × 1,939.39
  4. Step 4: Simplify right side
    7,486.43x = 21,778,677.80
  5. Step 5: Solve for x
    x = 21,778,677.80/7,486.43
  6. Step 6: Final answer
    x = 2,909.09

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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.