Home / 13,944.16-20,910.24-5,172.64

Finding the Fourth Proportional to 13,944.16, 20,910.24 and 5,172.64

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Solution

The fourth proportional to 13,944.16, 20,910.24 and 5,172.64 is: 7,756.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,944.16 : 20,910.24 = 5,172.64 : x
  2. Step 2: Convert to fraction form
    13,944.16/20,910.24 = 5,172.64/x
  3. Step 3: Cross multiply
    13,944.16x = 20,910.24 × 5,172.64
  4. Step 4: Simplify right side
    13,944.16x = 108,161,143.83
  5. Step 5: Solve for x
    x = 108,161,143.83/13,944.16
  6. Step 6: Final answer
    x = 7,756.73

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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.