Home / 13,353.09-20,029.41-5,453.87

Finding the Fourth Proportional to 13,353.09, 20,029.41 and 5,453.87

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Solution

The fourth proportional to 13,353.09, 20,029.41 and 5,453.87 is: 8,180.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,353.09 : 20,029.41 = 5,453.87 : x
  2. Step 2: Convert to fraction form
    13,353.09/20,029.41 = 5,453.87/x
  3. Step 3: Cross multiply
    13,353.09x = 20,029.41 × 5,453.87
  4. Step 4: Simplify right side
    13,353.09x = 109,237,698.17
  5. Step 5: Solve for x
    x = 109,237,698.17/13,353.09
  6. Step 6: Final answer
    x = 8,180.71

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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.