Home / 13,823.06-20,731.52-3,960.14

Finding the Fourth Proportional to 13,823.06, 20,731.52 and 3,960.14

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Solution

The fourth proportional to 13,823.06, 20,731.52 and 3,960.14 is: 5,939.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.06 : 20,731.52 = 3,960.14 : x
  2. Step 2: Convert to fraction form
    13,823.06/20,731.52 = 3,960.14/x
  3. Step 3: Cross multiply
    13,823.06x = 20,731.52 × 3,960.14
  4. Step 4: Simplify right side
    13,823.06x = 82,099,627.86
  5. Step 5: Solve for x
    x = 82,099,627.86/13,823.06
  6. Step 6: Final answer
    x = 5,939.33

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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.