Home / 13,504.20-20,244.48-6,480.72

Finding the Fourth Proportional to 13,504.20, 20,244.48 and 6,480.72

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Solution

The fourth proportional to 13,504.20, 20,244.48 and 6,480.72 is: 9,715.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,504.20 : 20,244.48 = 6,480.72 : x
  2. Step 2: Convert to fraction form
    13,504.20/20,244.48 = 6,480.72/x
  3. Step 3: Cross multiply
    13,504.20x = 20,244.48 × 6,480.72
  4. Step 4: Simplify right side
    13,504.20x = 131,198,806.43
  5. Step 5: Solve for x
    x = 131,198,806.43/13,504.20
  6. Step 6: Final answer
    x = 9,715.41

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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.