Home / 13,996.08-20,996.55-4,135.95

Finding the Fourth Proportional to 13,996.08, 20,996.55 and 4,135.95

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Solution

The fourth proportional to 13,996.08, 20,996.55 and 4,135.95 is: 6,204.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,996.08 : 20,996.55 = 4,135.95 : x
  2. Step 2: Convert to fraction form
    13,996.08/20,996.55 = 4,135.95/x
  3. Step 3: Cross multiply
    13,996.08x = 20,996.55 × 4,135.95
  4. Step 4: Simplify right side
    13,996.08x = 86,840,680.97
  5. Step 5: Solve for x
    x = 86,840,680.97/13,996.08
  6. Step 6: Final answer
    x = 6,204.64

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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.