Home / 13,529.21-20,290.92-3,668.58

Finding the Fourth Proportional to 13,529.21, 20,290.92 and 3,668.58

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Solution

The fourth proportional to 13,529.21, 20,290.92 and 3,668.58 is: 5,502.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,529.21 : 20,290.92 = 3,668.58 : x
  2. Step 2: Convert to fraction form
    13,529.21/20,290.92 = 3,668.58/x
  3. Step 3: Cross multiply
    13,529.21x = 20,290.92 × 3,668.58
  4. Step 4: Simplify right side
    13,529.21x = 74,438,863.29
  5. Step 5: Solve for x
    x = 74,438,863.29/13,529.21
  6. Step 6: Final answer
    x = 5,502.09

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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.