Home / 13,900.28-20,853.75-4,540.33

Finding the Fourth Proportional to 13,900.28, 20,853.75 and 4,540.33

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Solution

The fourth proportional to 13,900.28, 20,853.75 and 4,540.33 is: 6,811.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,900.28 : 20,853.75 = 4,540.33 : x
  2. Step 2: Convert to fraction form
    13,900.28/20,853.75 = 4,540.33/x
  3. Step 3: Cross multiply
    13,900.28x = 20,853.75 × 4,540.33
  4. Step 4: Simplify right side
    13,900.28x = 94,682,891.18
  5. Step 5: Solve for x
    x = 94,682,891.18/13,900.28
  6. Step 6: Final answer
    x = 6,811.58

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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.