Home / 13,346.82-20,021.18-3,986.73

Finding the Fourth Proportional to 13,346.82, 20,021.18 and 3,986.73

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Solution

The fourth proportional to 13,346.82, 20,021.18 and 3,986.73 is: 5,980.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.82 : 20,021.18 = 3,986.73 : x
  2. Step 2: Convert to fraction form
    13,346.82/20,021.18 = 3,986.73/x
  3. Step 3: Cross multiply
    13,346.82x = 20,021.18 × 3,986.73
  4. Step 4: Simplify right side
    13,346.82x = 79,819,019.01
  5. Step 5: Solve for x
    x = 79,819,019.01/13,346.82
  6. Step 6: Final answer
    x = 5,980.38

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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.