Home / 13,621.52-20,440.17-5,723.41

Finding the Fourth Proportional to 13,621.52, 20,440.17 and 5,723.41

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Solution

The fourth proportional to 13,621.52, 20,440.17 and 5,723.41 is: 8,588.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621.52 : 20,440.17 = 5,723.41 : x
  2. Step 2: Convert to fraction form
    13,621.52/20,440.17 = 5,723.41/x
  3. Step 3: Cross multiply
    13,621.52x = 20,440.17 × 5,723.41
  4. Step 4: Simplify right side
    13,621.52x = 116,987,476.70
  5. Step 5: Solve for x
    x = 116,987,476.70/13,621.52
  6. Step 6: Final answer
    x = 8,588.43

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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.