Home / 13,993.02-20,990.34-3,604.50

Finding the Fourth Proportional to 13,993.02, 20,990.34 and 3,604.50

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Solution

The fourth proportional to 13,993.02, 20,990.34 and 3,604.50 is: 5,406.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,993.02 : 20,990.34 = 3,604.50 : x
  2. Step 2: Convert to fraction form
    13,993.02/20,990.34 = 3,604.50/x
  3. Step 3: Cross multiply
    13,993.02x = 20,990.34 × 3,604.50
  4. Step 4: Simplify right side
    13,993.02x = 75,659,680.53
  5. Step 5: Solve for x
    x = 75,659,680.53/13,993.02
  6. Step 6: Final answer
    x = 5,406.96

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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.