Home / 13,590.09-20,372.67-5,267.97

Finding the Fourth Proportional to 13,590.09, 20,372.67 and 5,267.97

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Solution

The fourth proportional to 13,590.09, 20,372.67 and 5,267.97 is: 7,897.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590.09 : 20,372.67 = 5,267.97 : x
  2. Step 2: Convert to fraction form
    13,590.09/20,372.67 = 5,267.97/x
  3. Step 3: Cross multiply
    13,590.09x = 20,372.67 × 5,267.97
  4. Step 4: Simplify right side
    13,590.09x = 107,322,614.38
  5. Step 5: Solve for x
    x = 107,322,614.38/13,590.09
  6. Step 6: Final answer
    x = 7,897.12

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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.