Home / 13,529.10-20,293.79-3,668.57

Finding the Fourth Proportional to 13,529.10, 20,293.79 and 3,668.57

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Solution

The fourth proportional to 13,529.10, 20,293.79 and 3,668.57 is: 5,502.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,529.10 : 20,293.79 = 3,668.57 : x
  2. Step 2: Convert to fraction form
    13,529.10/20,293.79 = 3,668.57/x
  3. Step 3: Cross multiply
    13,529.10x = 20,293.79 × 3,668.57
  4. Step 4: Simplify right side
    13,529.10x = 74,449,069.37
  5. Step 5: Solve for x
    x = 74,449,069.37/13,529.10
  6. Step 6: Final answer
    x = 5,502.88

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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.