Home / 13,709.34-20,563.83-3,321.18

Finding the Fourth Proportional to 13,709.34, 20,563.83 and 3,321.18

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Solution

The fourth proportional to 13,709.34, 20,563.83 and 3,321.18 is: 4,981.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,709.34 : 20,563.83 = 3,321.18 : x
  2. Step 2: Convert to fraction form
    13,709.34/20,563.83 = 3,321.18/x
  3. Step 3: Cross multiply
    13,709.34x = 20,563.83 × 3,321.18
  4. Step 4: Simplify right side
    13,709.34x = 68,296,180.92
  5. Step 5: Solve for x
    x = 68,296,180.92/13,709.34
  6. Step 6: Final answer
    x = 4,981.73

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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.