Home / 13,989.50-20,984.34-3,601.34

Finding the Fourth Proportional to 13,989.50, 20,984.34 and 3,601.34

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Solution

The fourth proportional to 13,989.50, 20,984.34 and 3,601.34 is: 5,402.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,989.50 : 20,984.34 = 3,601.34 : x
  2. Step 2: Convert to fraction form
    13,989.50/20,984.34 = 3,601.34/x
  3. Step 3: Cross multiply
    13,989.50x = 20,984.34 × 3,601.34
  4. Step 4: Simplify right side
    13,989.50x = 75,571,743.02
  5. Step 5: Solve for x
    x = 75,571,743.02/13,989.50
  6. Step 6: Final answer
    x = 5,402.03

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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.