Home / 7,486.63-11,229.89-1,939.96

Finding the Fourth Proportional to 7,486.63, 11,229.89 and 1,939.96

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Solution

The fourth proportional to 7,486.63, 11,229.89 and 1,939.96 is: 2,909.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.63 : 11,229.89 = 1,939.96 : x
  2. Step 2: Convert to fraction form
    7,486.63/11,229.89 = 1,939.96/x
  3. Step 3: Cross multiply
    7,486.63x = 11,229.89 × 1,939.96
  4. Step 4: Simplify right side
    7,486.63x = 21,785,481.25
  5. Step 5: Solve for x
    x = 21,785,481.25/7,486.63
  6. Step 6: Final answer
    x = 2,909.92

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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.