Home / 13,609.26-20,415.17-5,289.92

Finding the Fourth Proportional to 13,609.26, 20,415.17 and 5,289.92

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Solution

The fourth proportional to 13,609.26, 20,415.17 and 5,289.92 is: 7,935.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609.26 : 20,415.17 = 5,289.92 : x
  2. Step 2: Convert to fraction form
    13,609.26/20,415.17 = 5,289.92/x
  3. Step 3: Cross multiply
    13,609.26x = 20,415.17 × 5,289.92
  4. Step 4: Simplify right side
    13,609.26x = 107,994,514.01
  5. Step 5: Solve for x
    x = 107,994,514.01/13,609.26
  6. Step 6: Final answer
    x = 7,935.37

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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.