Home / 13,348.50-20,021.38-3,486.49

Finding the Fourth Proportional to 13,348.50, 20,021.38 and 3,486.49

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Solution

The fourth proportional to 13,348.50, 20,021.38 and 3,486.49 is: 5,229.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348.50 : 20,021.38 = 3,486.49 : x
  2. Step 2: Convert to fraction form
    13,348.50/20,021.38 = 3,486.49/x
  3. Step 3: Cross multiply
    13,348.50x = 20,021.38 × 3,486.49
  4. Step 4: Simplify right side
    13,348.50x = 69,804,395.01
  5. Step 5: Solve for x
    x = 69,804,395.01/13,348.50
  6. Step 6: Final answer
    x = 5,229.38

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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.