Home / 13,806.72-20,713.44-3,946.24

Finding the Fourth Proportional to 13,806.72, 20,713.44 and 3,946.24

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Solution

The fourth proportional to 13,806.72, 20,713.44 and 3,946.24 is: 5,920.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,806.72 : 20,713.44 = 3,946.24 : x
  2. Step 2: Convert to fraction form
    13,806.72/20,713.44 = 3,946.24/x
  3. Step 3: Cross multiply
    13,806.72x = 20,713.44 × 3,946.24
  4. Step 4: Simplify right side
    13,806.72x = 81,740,205.47
  5. Step 5: Solve for x
    x = 81,740,205.47/13,806.72
  6. Step 6: Final answer
    x = 5,920.32

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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.