Home / 13,849.65-20,772.66-3,855.06

Finding the Fourth Proportional to 13,849.65, 20,772.66 and 3,855.06

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Solution

The fourth proportional to 13,849.65, 20,772.66 and 3,855.06 is: 5,782.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,849.65 : 20,772.66 = 3,855.06 : x
  2. Step 2: Convert to fraction form
    13,849.65/20,772.66 = 3,855.06/x
  3. Step 3: Cross multiply
    13,849.65x = 20,772.66 × 3,855.06
  4. Step 4: Simplify right side
    13,849.65x = 80,079,850.66
  5. Step 5: Solve for x
    x = 80,079,850.66/13,849.65
  6. Step 6: Final answer
    x = 5,782.08

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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.