Home / 11,379.45-17,057.82-5,445.39

Finding the Fourth Proportional to 11,379.45, 17,057.82 and 5,445.39

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Solution

The fourth proportional to 11,379.45, 17,057.82 and 5,445.39 is: 8,162.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,379.45 : 17,057.82 = 5,445.39 : x
  2. Step 2: Convert to fraction form
    11,379.45/17,057.82 = 5,445.39/x
  3. Step 3: Cross multiply
    11,379.45x = 17,057.82 × 5,445.39
  4. Step 4: Simplify right side
    11,379.45x = 92,886,482.45
  5. Step 5: Solve for x
    x = 92,886,482.45/11,379.45
  6. Step 6: Final answer
    x = 8,162.65

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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.