Home / 13,907.10-20,860.66-3,377.14

Finding the Fourth Proportional to 13,907.10, 20,860.66 and 3,377.14

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Solution

The fourth proportional to 13,907.10, 20,860.66 and 3,377.14 is: 5,065.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,907.10 : 20,860.66 = 3,377.14 : x
  2. Step 2: Convert to fraction form
    13,907.10/20,860.66 = 3,377.14/x
  3. Step 3: Cross multiply
    13,907.10x = 20,860.66 × 3,377.14
  4. Step 4: Simplify right side
    13,907.10x = 70,449,369.31
  5. Step 5: Solve for x
    x = 70,449,369.31/13,907.10
  6. Step 6: Final answer
    x = 5,065.71

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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.