Home / 13,839.84-20,757.53-3,976.87

Finding the Fourth Proportional to 13,839.84, 20,757.53 and 3,976.87

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Solution

The fourth proportional to 13,839.84, 20,757.53 and 3,976.87 is: 5,964.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,839.84 : 20,757.53 = 3,976.87 : x
  2. Step 2: Convert to fraction form
    13,839.84/20,757.53 = 3,976.87/x
  3. Step 3: Cross multiply
    13,839.84x = 20,757.53 × 3,976.87
  4. Step 4: Simplify right side
    13,839.84x = 82,549,998.33
  5. Step 5: Solve for x
    x = 82,549,998.33/13,839.84
  6. Step 6: Final answer
    x = 5,964.66

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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.