Home / 13,613.04-20,414.31-5,291.96

Finding the Fourth Proportional to 13,613.04, 20,414.31 and 5,291.96

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Solution

The fourth proportional to 13,613.04, 20,414.31 and 5,291.96 is: 7,935.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613.04 : 20,414.31 = 5,291.96 : x
  2. Step 2: Convert to fraction form
    13,613.04/20,414.31 = 5,291.96/x
  3. Step 3: Cross multiply
    13,613.04x = 20,414.31 × 5,291.96
  4. Step 4: Simplify right side
    13,613.04x = 108,031,609.88
  5. Step 5: Solve for x
    x = 108,031,609.88/13,613.04
  6. Step 6: Final answer
    x = 7,935.89

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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.