Home / 13,414.07-20,121.09-4,180.07

Finding the Fourth Proportional to 13,414.07, 20,121.09 and 4,180.07

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Solution

The fourth proportional to 13,414.07, 20,121.09 and 4,180.07 is: 6,270.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,414.07 : 20,121.09 = 4,180.07 : x
  2. Step 2: Convert to fraction form
    13,414.07/20,121.09 = 4,180.07/x
  3. Step 3: Cross multiply
    13,414.07x = 20,121.09 × 4,180.07
  4. Step 4: Simplify right side
    13,414.07x = 84,107,564.68
  5. Step 5: Solve for x
    x = 84,107,564.68/13,414.07
  6. Step 6: Final answer
    x = 6,270.10

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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.