Home / 11,814.85-17,722.01-5,577.78

Finding the Fourth Proportional to 11,814.85, 17,722.01 and 5,577.78

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Solution

The fourth proportional to 11,814.85, 17,722.01 and 5,577.78 is: 8,366.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,814.85 : 17,722.01 = 5,577.78 : x
  2. Step 2: Convert to fraction form
    11,814.85/17,722.01 = 5,577.78/x
  3. Step 3: Cross multiply
    11,814.85x = 17,722.01 × 5,577.78
  4. Step 4: Simplify right side
    11,814.85x = 98,849,472.94
  5. Step 5: Solve for x
    x = 98,849,472.94/11,814.85
  6. Step 6: Final answer
    x = 8,366.54

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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.