Home / 12,161.67-18,232.78-4,764.75

Finding the Fourth Proportional to 12,161.67, 18,232.78 and 4,764.75

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Solution

The fourth proportional to 12,161.67, 18,232.78 and 4,764.75 is: 7,143.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161.67 : 18,232.78 = 4,764.75 : x
  2. Step 2: Convert to fraction form
    12,161.67/18,232.78 = 4,764.75/x
  3. Step 3: Cross multiply
    12,161.67x = 18,232.78 × 4,764.75
  4. Step 4: Simplify right side
    12,161.67x = 86,874,638.51
  5. Step 5: Solve for x
    x = 86,874,638.51/12,161.67
  6. Step 6: Final answer
    x = 7,143.31

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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.