Home / 13,805.32-20,696.46-5,480.12

Finding the Fourth Proportional to 13,805.32, 20,696.46 and 5,480.12

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Solution

The fourth proportional to 13,805.32, 20,696.46 and 5,480.12 is: 8,215.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,805.32 : 20,696.46 = 5,480.12 : x
  2. Step 2: Convert to fraction form
    13,805.32/20,696.46 = 5,480.12/x
  3. Step 3: Cross multiply
    13,805.32x = 20,696.46 × 5,480.12
  4. Step 4: Simplify right side
    13,805.32x = 113,419,084.38
  5. Step 5: Solve for x
    x = 113,419,084.38/13,805.32
  6. Step 6: Final answer
    x = 8,215.61

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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.