Home / 13,975.20-20,963.44-3,586.72

Finding the Fourth Proportional to 13,975.20, 20,963.44 and 3,586.72

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Solution

The fourth proportional to 13,975.20, 20,963.44 and 3,586.72 is: 5,380.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.20 : 20,963.44 = 3,586.72 : x
  2. Step 2: Convert to fraction form
    13,975.20/20,963.44 = 3,586.72/x
  3. Step 3: Cross multiply
    13,975.20x = 20,963.44 × 3,586.72
  4. Step 4: Simplify right side
    13,975.20x = 75,189,989.52
  5. Step 5: Solve for x
    x = 75,189,989.52/13,975.20
  6. Step 6: Final answer
    x = 5,380.24

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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.