Home / 13,491.12-20,234.22-3,628.09

Finding the Fourth Proportional to 13,491.12, 20,234.22 and 3,628.09

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Solution

The fourth proportional to 13,491.12, 20,234.22 and 3,628.09 is: 5,441.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.12 : 20,234.22 = 3,628.09 : x
  2. Step 2: Convert to fraction form
    13,491.12/20,234.22 = 3,628.09/x
  3. Step 3: Cross multiply
    13,491.12x = 20,234.22 × 3,628.09
  4. Step 4: Simplify right side
    13,491.12x = 73,411,571.24
  5. Step 5: Solve for x
    x = 73,411,571.24/13,491.12
  6. Step 6: Final answer
    x = 5,441.47

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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.