Home / 13,993.04-20,989.52-3,604.72

Finding the Fourth Proportional to 13,993.04, 20,989.52 and 3,604.72

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Solution

The fourth proportional to 13,993.04, 20,989.52 and 3,604.72 is: 5,407.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,993.04 : 20,989.52 = 3,604.72 : x
  2. Step 2: Convert to fraction form
    13,993.04/20,989.52 = 3,604.72/x
  3. Step 3: Cross multiply
    13,993.04x = 20,989.52 × 3,604.72
  4. Step 4: Simplify right side
    13,993.04x = 75,661,342.53
  5. Step 5: Solve for x
    x = 75,661,342.53/13,993.04
  6. Step 6: Final answer
    x = 5,407.07

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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.