Home / 13,786.42-20,679.68-5,021.33

Finding the Fourth Proportional to 13,786.42, 20,679.68 and 5,021.33

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Solution

The fourth proportional to 13,786.42, 20,679.68 and 5,021.33 is: 7,532.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,786.42 : 20,679.68 = 5,021.33 : x
  2. Step 2: Convert to fraction form
    13,786.42/20,679.68 = 5,021.33/x
  3. Step 3: Cross multiply
    13,786.42x = 20,679.68 × 5,021.33
  4. Step 4: Simplify right side
    13,786.42x = 103,839,479.85
  5. Step 5: Solve for x
    x = 103,839,479.85/13,786.42
  6. Step 6: Final answer
    x = 7,532.01

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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.