Home / 13,849.35-19,110.42-7,879.38

Finding the Fourth Proportional to 13,849.35, 19,110.42 and 7,879.38

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Solution

The fourth proportional to 13,849.35, 19,110.42 and 7,879.38 is: 10,872.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,849.35 : 19,110.42 = 7,879.38 : x
  2. Step 2: Convert to fraction form
    13,849.35/19,110.42 = 7,879.38/x
  3. Step 3: Cross multiply
    13,849.35x = 19,110.42 × 7,879.38
  4. Step 4: Simplify right side
    13,849.35x = 150,578,261.14
  5. Step 5: Solve for x
    x = 150,578,261.14/13,849.35
  6. Step 6: Final answer
    x = 10,872.59

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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.