Home / 11,916.86-17,876.92-4,126.28

Finding the Fourth Proportional to 11,916.86, 17,876.92 and 4,126.28

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Solution

The fourth proportional to 11,916.86, 17,876.92 and 4,126.28 is: 6,189.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,916.86 : 17,876.92 = 4,126.28 : x
  2. Step 2: Convert to fraction form
    11,916.86/17,876.92 = 4,126.28/x
  3. Step 3: Cross multiply
    11,916.86x = 17,876.92 × 4,126.28
  4. Step 4: Simplify right side
    11,916.86x = 73,765,177.46
  5. Step 5: Solve for x
    x = 73,765,177.46/11,916.86
  6. Step 6: Final answer
    x = 6,189.98

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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.