Home / 8,211.29-12,313.73-2,663.29

Finding the Fourth Proportional to 8,211.29, 12,313.73 and 2,663.29

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Solution

The fourth proportional to 8,211.29, 12,313.73 and 2,663.29 is: 3,993.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,211.29 : 12,313.73 = 2,663.29 : x
  2. Step 2: Convert to fraction form
    8,211.29/12,313.73 = 2,663.29/x
  3. Step 3: Cross multiply
    8,211.29x = 12,313.73 × 2,663.29
  4. Step 4: Simplify right side
    8,211.29x = 32,795,009.85
  5. Step 5: Solve for x
    x = 32,795,009.85/8,211.29
  6. Step 6: Final answer
    x = 3,993.89

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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.