Home / 18,675.18-27,991.59-11,658.33

Finding the Fourth Proportional to 18,675.18, 27,991.59 and 11,658.33

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Solution

The fourth proportional to 18,675.18, 27,991.59 and 11,658.33 is: 17,474.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,675.18 : 27,991.59 = 11,658.33 : x
  2. Step 2: Convert to fraction form
    18,675.18/27,991.59 = 11,658.33/x
  3. Step 3: Cross multiply
    18,675.18x = 27,991.59 × 11,658.33
  4. Step 4: Simplify right side
    18,675.18x = 326,335,193.44
  5. Step 5: Solve for x
    x = 326,335,193.44/18,675.18
  6. Step 6: Final answer
    x = 17,474.27

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1.5x scale

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.