Home / 13,949.68-20,962.82-7,380.51

Finding the Fourth Proportional to 13,949.68, 20,962.82 and 7,380.51

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Solution

The fourth proportional to 13,949.68, 20,962.82 and 7,380.51 is: 11,091.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.68 : 20,962.82 = 7,380.51 : x
  2. Step 2: Convert to fraction form
    13,949.68/20,962.82 = 7,380.51/x
  3. Step 3: Cross multiply
    13,949.68x = 20,962.82 × 7,380.51
  4. Step 4: Simplify right side
    13,949.68x = 154,716,321.09
  5. Step 5: Solve for x
    x = 154,716,321.09/13,949.68
  6. Step 6: Final answer
    x = 11,091.03

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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.