Home / 13,944.87-20,912.10-5,622.07

Finding the Fourth Proportional to 13,944.87, 20,912.10 and 5,622.07

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Solution

The fourth proportional to 13,944.87, 20,912.10 and 5,622.07 is: 8,431.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,944.87 : 20,912.10 = 5,622.07 : x
  2. Step 2: Convert to fraction form
    13,944.87/20,912.10 = 5,622.07/x
  3. Step 3: Cross multiply
    13,944.87x = 20,912.10 × 5,622.07
  4. Step 4: Simplify right side
    13,944.87x = 117,569,290.05
  5. Step 5: Solve for x
    x = 117,569,290.05/13,944.87
  6. Step 6: Final answer
    x = 8,431.01

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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.