Home / 13,906.94-20,860.22-3,377.05

Finding the Fourth Proportional to 13,906.94, 20,860.22 and 3,377.05

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Solution

The fourth proportional to 13,906.94, 20,860.22 and 3,377.05 is: 5,065.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906.94 : 20,860.22 = 3,377.05 : x
  2. Step 2: Convert to fraction form
    13,906.94/20,860.22 = 3,377.05/x
  3. Step 3: Cross multiply
    13,906.94x = 20,860.22 × 3,377.05
  4. Step 4: Simplify right side
    13,906.94x = 70,445,962.24
  5. Step 5: Solve for x
    x = 70,445,962.24/13,906.94
  6. Step 6: Final answer
    x = 5,065.53

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1.5x scale

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.