Home / 13,795.09-19,038.62-8,131.59

Finding the Fourth Proportional to 13,795.09, 19,038.62 and 8,131.59

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Solution

The fourth proportional to 13,795.09, 19,038.62 and 8,131.59 is: 11,222.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,795.09 : 19,038.62 = 8,131.59 : x
  2. Step 2: Convert to fraction form
    13,795.09/19,038.62 = 8,131.59/x
  3. Step 3: Cross multiply
    13,795.09x = 19,038.62 × 8,131.59
  4. Step 4: Simplify right side
    13,795.09x = 154,814,272.33
  5. Step 5: Solve for x
    x = 154,814,272.33/13,795.09
  6. Step 6: Final answer
    x = 11,222.42

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