Home / 10,999.26-16,502.31-3,603.78

Finding the Fourth Proportional to 10,999.26, 16,502.31 and 3,603.78

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Solution

The fourth proportional to 10,999.26, 16,502.31 and 3,603.78 is: 5,406.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.26 : 16,502.31 = 3,603.78 : x
  2. Step 2: Convert to fraction form
    10,999.26/16,502.31 = 3,603.78/x
  3. Step 3: Cross multiply
    10,999.26x = 16,502.31 × 3,603.78
  4. Step 4: Simplify right side
    10,999.26x = 59,470,694.73
  5. Step 5: Solve for x
    x = 59,470,694.73/10,999.26
  6. Step 6: Final answer
    x = 5,406.79

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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.