Home / 13,584.12-20,382.96-5,269.86

Finding the Fourth Proportional to 13,584.12, 20,382.96 and 5,269.86

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Solution

The fourth proportional to 13,584.12, 20,382.96 and 5,269.86 is: 7,907.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,584.12 : 20,382.96 = 5,269.86 : x
  2. Step 2: Convert to fraction form
    13,584.12/20,382.96 = 5,269.86/x
  3. Step 3: Cross multiply
    13,584.12x = 20,382.96 × 5,269.86
  4. Step 4: Simplify right side
    13,584.12x = 107,415,345.59
  5. Step 5: Solve for x
    x = 107,415,345.59/13,584.12
  6. Step 6: Final answer
    x = 7,907.42

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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.