Home / 13,422.28-20,126.93-4,982.96

Finding the Fourth Proportional to 13,422.28, 20,126.93 and 4,982.96

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Solution

The fourth proportional to 13,422.28, 20,126.93 and 4,982.96 is: 7,472.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,422.28 : 20,126.93 = 4,982.96 : x
  2. Step 2: Convert to fraction form
    13,422.28/20,126.93 = 4,982.96/x
  3. Step 3: Cross multiply
    13,422.28x = 20,126.93 × 4,982.96
  4. Step 4: Simplify right side
    13,422.28x = 100,291,662.20
  5. Step 5: Solve for x
    x = 100,291,662.20/13,422.28
  6. Step 6: Final answer
    x = 7,472.03

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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.