Home / 13,901.24-20,850.64-3,906.16

Finding the Fourth Proportional to 13,901.24, 20,850.64 and 3,906.16

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Solution

The fourth proportional to 13,901.24, 20,850.64 and 3,906.16 is: 5,858.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,901.24 : 20,850.64 = 3,906.16 : x
  2. Step 2: Convert to fraction form
    13,901.24/20,850.64 = 3,906.16/x
  3. Step 3: Cross multiply
    13,901.24x = 20,850.64 × 3,906.16
  4. Step 4: Simplify right side
    13,901.24x = 81,445,874.05
  5. Step 5: Solve for x
    x = 81,445,874.05/13,901.24
  6. Step 6: Final answer
    x = 5,858.89

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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.