Home / 13,906.83-20,860.04-3,376.94

Finding the Fourth Proportional to 13,906.83, 20,860.04 and 3,376.94

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Solution

The fourth proportional to 13,906.83, 20,860.04 and 3,376.94 is: 5,065.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906.83 : 20,860.04 = 3,376.94 : x
  2. Step 2: Convert to fraction form
    13,906.83/20,860.04 = 3,376.94/x
  3. Step 3: Cross multiply
    13,906.83x = 20,860.04 × 3,376.94
  4. Step 4: Simplify right side
    13,906.83x = 70,442,988.62
  5. Step 5: Solve for x
    x = 70,442,988.62/13,906.83
  6. Step 6: Final answer
    x = 5,065.35

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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.