Home / 13,842.18-20,760.21-3,979.26

Finding the Fourth Proportional to 13,842.18, 20,760.21 and 3,979.26

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Solution

The fourth proportional to 13,842.18, 20,760.21 and 3,979.26 is: 5,968.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,842.18 : 20,760.21 = 3,979.26 : x
  2. Step 2: Convert to fraction form
    13,842.18/20,760.21 = 3,979.26/x
  3. Step 3: Cross multiply
    13,842.18x = 20,760.21 × 3,979.26
  4. Step 4: Simplify right side
    13,842.18x = 82,610,273.24
  5. Step 5: Solve for x
    x = 82,610,273.24/13,842.18
  6. Step 6: Final answer
    x = 5,968.01

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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.