Home / 13,944.08-20,922.96-6,143.60

Finding the Fourth Proportional to 13,944.08, 20,922.96 and 6,143.60

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Solution

The fourth proportional to 13,944.08, 20,922.96 and 6,143.60 is: 9,218.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,944.08 : 20,922.96 = 6,143.60 : x
  2. Step 2: Convert to fraction form
    13,944.08/20,922.96 = 6,143.60/x
  3. Step 3: Cross multiply
    13,944.08x = 20,922.96 × 6,143.60
  4. Step 4: Simplify right side
    13,944.08x = 128,542,297.06
  5. Step 5: Solve for x
    x = 128,542,297.06/13,944.08
  6. Step 6: Final answer
    x = 9,218.41

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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.