Home / 13,614.32-20,422.20-4,380.56

Finding the Fourth Proportional to 13,614.32, 20,422.20 and 4,380.56

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Solution

The fourth proportional to 13,614.32, 20,422.20 and 4,380.56 is: 6,571.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,614.32 : 20,422.20 = 4,380.56 : x
  2. Step 2: Convert to fraction form
    13,614.32/20,422.20 = 4,380.56/x
  3. Step 3: Cross multiply
    13,614.32x = 20,422.20 × 4,380.56
  4. Step 4: Simplify right side
    13,614.32x = 89,460,672.43
  5. Step 5: Solve for x
    x = 89,460,672.43/13,614.32
  6. Step 6: Final answer
    x = 6,571.07

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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.