Home / 13,974.46-20,961.06-3,979.24

Finding the Fourth Proportional to 13,974.46, 20,961.06 and 3,979.24

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Solution

The fourth proportional to 13,974.46, 20,961.06 and 3,979.24 is: 5,968.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,974.46 : 20,961.06 = 3,979.24 : x
  2. Step 2: Convert to fraction form
    13,974.46/20,961.06 = 3,979.24/x
  3. Step 3: Cross multiply
    13,974.46x = 20,961.06 × 3,979.24
  4. Step 4: Simplify right side
    13,974.46x = 83,409,088.39
  5. Step 5: Solve for x
    x = 83,409,088.39/13,974.46
  6. Step 6: Final answer
    x = 5,968.68

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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.