Home / 8,668.24-12,999.88-2,825.36

Finding the Fourth Proportional to 8,668.24, 12,999.88 and 2,825.36

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Solution

The fourth proportional to 8,668.24, 12,999.88 and 2,825.36 is: 4,237.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,668.24 : 12,999.88 = 2,825.36 : x
  2. Step 2: Convert to fraction form
    8,668.24/12,999.88 = 2,825.36/x
  3. Step 3: Cross multiply
    8,668.24x = 12,999.88 × 2,825.36
  4. Step 4: Simplify right side
    8,668.24x = 36,729,340.96
  5. Step 5: Solve for x
    x = 36,729,340.96/8,668.24
  6. Step 6: Final answer
    x = 4,237.23

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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.