Home / 13,843.73-20,765.61-3,980.72

Finding the Fourth Proportional to 13,843.73, 20,765.61 and 3,980.72

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Solution

The fourth proportional to 13,843.73, 20,765.61 and 3,980.72 is: 5,971.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,843.73 : 20,765.61 = 3,980.72 : x
  2. Step 2: Convert to fraction form
    13,843.73/20,765.61 = 3,980.72/x
  3. Step 3: Cross multiply
    13,843.73x = 20,765.61 × 3,980.72
  4. Step 4: Simplify right side
    13,843.73x = 82,661,975.21
  5. Step 5: Solve for x
    x = 82,661,975.21/13,843.73
  6. Step 6: Final answer
    x = 5,971.08

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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.