Home / 13,514.38-20,268.11-5,189.85

Finding the Fourth Proportional to 13,514.38, 20,268.11 and 5,189.85

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Solution

The fourth proportional to 13,514.38, 20,268.11 and 5,189.85 is: 7,783.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,514.38 : 20,268.11 = 5,189.85 : x
  2. Step 2: Convert to fraction form
    13,514.38/20,268.11 = 5,189.85/x
  3. Step 3: Cross multiply
    13,514.38x = 20,268.11 × 5,189.85
  4. Step 4: Simplify right side
    13,514.38x = 105,188,511.19
  5. Step 5: Solve for x
    x = 105,188,511.19/13,514.38
  6. Step 6: Final answer
    x = 7,783.45

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1.5x scale

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.