Home / 13,839.68-20,759.75-4,351.71

Finding the Fourth Proportional to 13,839.68, 20,759.75 and 4,351.71

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Solution

The fourth proportional to 13,839.68, 20,759.75 and 4,351.71 is: 6,527.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,839.68 : 20,759.75 = 4,351.71 : x
  2. Step 2: Convert to fraction form
    13,839.68/20,759.75 = 4,351.71/x
  3. Step 3: Cross multiply
    13,839.68x = 20,759.75 × 4,351.71
  4. Step 4: Simplify right side
    13,839.68x = 90,340,422.55
  5. Step 5: Solve for x
    x = 90,340,422.55/13,839.68
  6. Step 6: Final answer
    x = 6,527.64

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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.