Home / 13,902.21-20,853.32-3,513.96

Finding the Fourth Proportional to 13,902.21, 20,853.32 and 3,513.96

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Solution

The fourth proportional to 13,902.21, 20,853.32 and 3,513.96 is: 5,270.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902.21 : 20,853.32 = 3,513.96 : x
  2. Step 2: Convert to fraction form
    13,902.21/20,853.32 = 3,513.96/x
  3. Step 3: Cross multiply
    13,902.21x = 20,853.32 × 3,513.96
  4. Step 4: Simplify right side
    13,902.21x = 73,277,714.78
  5. Step 5: Solve for x
    x = 73,277,714.78/13,902.21
  6. Step 6: Final answer
    x = 5,270.94

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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.