Home / 13,491.27-20,238.09-3,630.33

Finding the Fourth Proportional to 13,491.27, 20,238.09 and 3,630.33

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Solution

The fourth proportional to 13,491.27, 20,238.09 and 3,630.33 is: 5,445.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.27 : 20,238.09 = 3,630.33 : x
  2. Step 2: Convert to fraction form
    13,491.27/20,238.09 = 3,630.33/x
  3. Step 3: Cross multiply
    13,491.27x = 20,238.09 × 3,630.33
  4. Step 4: Simplify right side
    13,491.27x = 73,470,945.27
  5. Step 5: Solve for x
    x = 73,470,945.27/13,491.27
  6. Step 6: Final answer
    x = 5,445.81

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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.