Home / 7,381.51-11,072.37-4,115.37

Finding the Fourth Proportional to 7,381.51, 11,072.37 and 4,115.37

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Solution

The fourth proportional to 7,381.51, 11,072.37 and 4,115.37 is: 6,173.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381.51 : 11,072.37 = 4,115.37 : x
  2. Step 2: Convert to fraction form
    7,381.51/11,072.37 = 4,115.37/x
  3. Step 3: Cross multiply
    7,381.51x = 11,072.37 × 4,115.37
  4. Step 4: Simplify right side
    7,381.51x = 45,566,843.97
  5. Step 5: Solve for x
    x = 45,566,843.97/7,381.51
  6. Step 6: Final answer
    x = 6,173.11

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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.