Home / 7,850.98-11,769.90-5,379.76

Finding the Fourth Proportional to 7,850.98, 11,769.90 and 5,379.76

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Solution

The fourth proportional to 7,850.98, 11,769.90 and 5,379.76 is: 8,065.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,850.98 : 11,769.90 = 5,379.76 : x
  2. Step 2: Convert to fraction form
    7,850.98/11,769.90 = 5,379.76/x
  3. Step 3: Cross multiply
    7,850.98x = 11,769.90 × 5,379.76
  4. Step 4: Simplify right side
    7,850.98x = 63,319,237.22
  5. Step 5: Solve for x
    x = 63,319,237.22/7,850.98
  6. Step 6: Final answer
    x = 8,065.14

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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.