Home / 13,609.18-20,408.64-4,722.27

Finding the Fourth Proportional to 13,609.18, 20,408.64 and 4,722.27

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Solution

The fourth proportional to 13,609.18, 20,408.64 and 4,722.27 is: 7,081.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609.18 : 20,408.64 = 4,722.27 : x
  2. Step 2: Convert to fraction form
    13,609.18/20,408.64 = 4,722.27/x
  3. Step 3: Cross multiply
    13,609.18x = 20,408.64 × 4,722.27
  4. Step 4: Simplify right side
    13,609.18x = 96,375,108.41
  5. Step 5: Solve for x
    x = 96,375,108.41/13,609.18
  6. Step 6: Final answer
    x = 7,081.62

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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.