Home / 13,609.01-20,408.27-5,287.93

Finding the Fourth Proportional to 13,609.01, 20,408.27 and 5,287.93

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Solution

The fourth proportional to 13,609.01, 20,408.27 and 5,287.93 is: 7,929.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609.01 : 20,408.27 = 5,287.93 : x
  2. Step 2: Convert to fraction form
    13,609.01/20,408.27 = 5,287.93/x
  3. Step 3: Cross multiply
    13,609.01x = 20,408.27 × 5,287.93
  4. Step 4: Simplify right side
    13,609.01x = 107,917,425.72
  5. Step 5: Solve for x
    x = 107,917,425.72/13,609.01
  6. Step 6: Final answer
    x = 7,929.85

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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.