Home / 11,814.66-17,717.45-3,914.78

Finding the Fourth Proportional to 11,814.66, 17,717.45 and 3,914.78

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Solution

The fourth proportional to 11,814.66, 17,717.45 and 3,914.78 is: 5,870.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,814.66 : 17,717.45 = 3,914.78 : x
  2. Step 2: Convert to fraction form
    11,814.66/17,717.45 = 3,914.78/x
  3. Step 3: Cross multiply
    11,814.66x = 17,717.45 × 3,914.78
  4. Step 4: Simplify right side
    11,814.66x = 69,359,810.75
  5. Step 5: Solve for x
    x = 69,359,810.75/11,814.66
  6. Step 6: Final answer
    x = 5,870.66

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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.