Home / 13,909.88-20,864.84-4,049.39

Finding the Fourth Proportional to 13,909.88, 20,864.84 and 4,049.39

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Solution

The fourth proportional to 13,909.88, 20,864.84 and 4,049.39 is: 6,074.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909.88 : 20,864.84 = 4,049.39 : x
  2. Step 2: Convert to fraction form
    13,909.88/20,864.84 = 4,049.39/x
  3. Step 3: Cross multiply
    13,909.88x = 20,864.84 × 4,049.39
  4. Step 4: Simplify right side
    13,909.88x = 84,489,929.14
  5. Step 5: Solve for x
    x = 84,489,929.14/13,909.88
  6. Step 6: Final answer
    x = 6,074.10

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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.