Home / 11,919.38-17,876.53-4,021.18

Finding the Fourth Proportional to 11,919.38, 17,876.53 and 4,021.18

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Solution

The fourth proportional to 11,919.38, 17,876.53 and 4,021.18 is: 6,030.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,919.38 : 17,876.53 = 4,021.18 : x
  2. Step 2: Convert to fraction form
    11,919.38/17,876.53 = 4,021.18/x
  3. Step 3: Cross multiply
    11,919.38x = 17,876.53 × 4,021.18
  4. Step 4: Simplify right side
    11,919.38x = 71,884,744.91
  5. Step 5: Solve for x
    x = 71,884,744.91/11,919.38
  6. Step 6: Final answer
    x = 6,030.91

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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.