Home / 13,944.12-20,910.97-5,621.32

Finding the Fourth Proportional to 13,944.12, 20,910.97 and 5,621.32

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Solution

The fourth proportional to 13,944.12, 20,910.97 and 5,621.32 is: 8,429.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,944.12 : 20,910.97 = 5,621.32 : x
  2. Step 2: Convert to fraction form
    13,944.12/20,910.97 = 5,621.32/x
  3. Step 3: Cross multiply
    13,944.12x = 20,910.97 × 5,621.32
  4. Step 4: Simplify right side
    13,944.12x = 117,547,253.88
  5. Step 5: Solve for x
    x = 117,547,253.88/13,944.12
  6. Step 6: Final answer
    x = 8,429.88

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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.