Home / 13,891.05-19,169.46-7,922.82

Finding the Fourth Proportional to 13,891.05, 19,169.46 and 7,922.82

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Solution

The fourth proportional to 13,891.05, 19,169.46 and 7,922.82 is: 10,933.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891.05 : 19,169.46 = 7,922.82 : x
  2. Step 2: Convert to fraction form
    13,891.05/19,169.46 = 7,922.82/x
  3. Step 3: Cross multiply
    13,891.05x = 19,169.46 × 7,922.82
  4. Step 4: Simplify right side
    13,891.05x = 151,876,181.08
  5. Step 5: Solve for x
    x = 151,876,181.08/13,891.05
  6. Step 6: Final answer
    x = 10,933.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.