Home / 11,837.81-17,756.75-3,072.80

Finding the Fourth Proportional to 11,837.81, 17,756.75 and 3,072.80

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Solution

The fourth proportional to 11,837.81, 17,756.75 and 3,072.80 is: 4,609.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,837.81 : 17,756.75 = 3,072.80 : x
  2. Step 2: Convert to fraction form
    11,837.81/17,756.75 = 3,072.80/x
  3. Step 3: Cross multiply
    11,837.81x = 17,756.75 × 3,072.80
  4. Step 4: Simplify right side
    11,837.81x = 54,562,993.47
  5. Step 5: Solve for x
    x = 54,562,993.47/11,837.81
  6. Step 6: Final answer
    x = 4,609.21

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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.