Home / 13,414.29-20,121.69-4,649.49

Finding the Fourth Proportional to 13,414.29, 20,121.69 and 4,649.49

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Solution

The fourth proportional to 13,414.29, 20,121.69 and 4,649.49 is: 6,974.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,414.29 : 20,121.69 = 4,649.49 : x
  2. Step 2: Convert to fraction form
    13,414.29/20,121.69 = 4,649.49/x
  3. Step 3: Cross multiply
    13,414.29x = 20,121.69 × 4,649.49
  4. Step 4: Simplify right side
    13,414.29x = 93,555,596.44
  5. Step 5: Solve for x
    x = 93,555,596.44/13,414.29
  6. Step 6: Final answer
    x = 6,974.32

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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.