Home / 7,814.82-11,715.45-7,379.88

Finding the Fourth Proportional to 7,814.82, 11,715.45 and 7,379.88

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Solution

The fourth proportional to 7,814.82, 11,715.45 and 7,379.88 is: 11,063.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,814.82 : 11,715.45 = 7,379.88 : x
  2. Step 2: Convert to fraction form
    7,814.82/11,715.45 = 7,379.88/x
  3. Step 3: Cross multiply
    7,814.82x = 11,715.45 × 7,379.88
  4. Step 4: Simplify right side
    7,814.82x = 86,458,615.15
  5. Step 5: Solve for x
    x = 86,458,615.15/7,814.82
  6. Step 6: Final answer
    x = 11,063.42

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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.