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Finding the Fourth Proportional to 8,668.28, 13,003.98 and 4,051.28

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Solution

The fourth proportional to 8,668.28, 13,003.98 and 4,051.28 is: 6,077.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,668.28 : 13,003.98 = 4,051.28 : x
  2. Step 2: Convert to fraction form
    8,668.28/13,003.98 = 4,051.28/x
  3. Step 3: Cross multiply
    8,668.28x = 13,003.98 × 4,051.28
  4. Step 4: Simplify right side
    8,668.28x = 52,682,764.09
  5. Step 5: Solve for x
    x = 52,682,764.09/8,668.28
  6. Step 6: Final answer
    x = 6,077.65

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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.