Home / 13,488.40-20,232.57-3,627.68

Finding the Fourth Proportional to 13,488.40, 20,232.57 and 3,627.68

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Solution

The fourth proportional to 13,488.40, 20,232.57 and 3,627.68 is: 5,441.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.40 : 20,232.57 = 3,627.68 : x
  2. Step 2: Convert to fraction form
    13,488.40/20,232.57 = 3,627.68/x
  3. Step 3: Cross multiply
    13,488.40x = 20,232.57 × 3,627.68
  4. Step 4: Simplify right side
    13,488.40x = 73,397,289.54
  5. Step 5: Solve for x
    x = 73,397,289.54/13,488.40
  6. Step 6: Final answer
    x = 5,441.51

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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.