Home / 13,958.38-20,940.41-12,564.24

Finding the Fourth Proportional to 13,958.38, 20,940.41 and 12,564.24

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Solution

The fourth proportional to 13,958.38, 20,940.41 and 12,564.24 is: 18,848.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,958.38 : 20,940.41 = 12,564.24 : x
  2. Step 2: Convert to fraction form
    13,958.38/20,940.41 = 12,564.24/x
  3. Step 3: Cross multiply
    13,958.38x = 20,940.41 × 12,564.24
  4. Step 4: Simplify right side
    13,958.38x = 263,100,336.94
  5. Step 5: Solve for x
    x = 263,100,336.94/13,958.38
  6. Step 6: Final answer
    x = 18,848.92

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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.