Home / 11,987.23-17,986.47-6,147.94

Finding the Fourth Proportional to 11,987.23, 17,986.47 and 6,147.94

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Solution

The fourth proportional to 11,987.23, 17,986.47 and 6,147.94 is: 9,224.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987.23 : 17,986.47 = 6,147.94 : x
  2. Step 2: Convert to fraction form
    11,987.23/17,986.47 = 6,147.94/x
  3. Step 3: Cross multiply
    11,987.23x = 17,986.47 × 6,147.94
  4. Step 4: Simplify right side
    11,987.23x = 110,579,738.37
  5. Step 5: Solve for x
    x = 110,579,738.37/11,987.23
  6. Step 6: Final answer
    x = 9,224.79

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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.