Home / 11,128.24-16,679.38-9,051.96

Finding the Fourth Proportional to 11,128.24, 16,679.38 and 9,051.96

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Solution

The fourth proportional to 11,128.24, 16,679.38 and 9,051.96 is: 13,567.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,128.24 : 16,679.38 = 9,051.96 : x
  2. Step 2: Convert to fraction form
    11,128.24/16,679.38 = 9,051.96/x
  3. Step 3: Cross multiply
    11,128.24x = 16,679.38 × 9,051.96
  4. Step 4: Simplify right side
    11,128.24x = 150,981,080.58
  5. Step 5: Solve for x
    x = 150,981,080.58/11,128.24
  6. Step 6: Final answer
    x = 13,567.38

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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.