Home / 13,842.44-20,760.87-3,979.40

Finding the Fourth Proportional to 13,842.44, 20,760.87 and 3,979.40

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Solution

The fourth proportional to 13,842.44, 20,760.87 and 3,979.40 is: 5,968.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,842.44 : 20,760.87 = 3,979.40 : x
  2. Step 2: Convert to fraction form
    13,842.44/20,760.87 = 3,979.40/x
  3. Step 3: Cross multiply
    13,842.44x = 20,760.87 × 3,979.40
  4. Step 4: Simplify right side
    13,842.44x = 82,615,806.08
  5. Step 5: Solve for x
    x = 82,615,806.08/13,842.44
  6. Step 6: Final answer
    x = 5,968.30

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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.