Home / 13,851.36-20,785.26-5,535.30

Finding the Fourth Proportional to 13,851.36, 20,785.26 and 5,535.30

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Solution

The fourth proportional to 13,851.36, 20,785.26 and 5,535.30 is: 8,306.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,851.36 : 20,785.26 = 5,535.30 : x
  2. Step 2: Convert to fraction form
    13,851.36/20,785.26 = 5,535.30/x
  3. Step 3: Cross multiply
    13,851.36x = 20,785.26 × 5,535.30
  4. Step 4: Simplify right side
    13,851.36x = 115,052,649.68
  5. Step 5: Solve for x
    x = 115,052,649.68/13,851.36
  6. Step 6: Final answer
    x = 8,306.23

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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.