Home / 13,933.10-20,849.72-12,065.42

Finding the Fourth Proportional to 13,933.10, 20,849.72 and 12,065.42

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Solution

The fourth proportional to 13,933.10, 20,849.72 and 12,065.42 is: 18,054.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,933.10 : 20,849.72 = 12,065.42 : x
  2. Step 2: Convert to fraction form
    13,933.10/20,849.72 = 12,065.42/x
  3. Step 3: Cross multiply
    13,933.10x = 20,849.72 × 12,065.42
  4. Step 4: Simplify right side
    13,933.10x = 251,560,628.68
  5. Step 5: Solve for x
    x = 251,560,628.68/13,933.10
  6. Step 6: Final answer
    x = 18,054.89

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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.