Home / 19,618.42-27,072.85-11,121.33

Finding the Fourth Proportional to 19,618.42, 27,072.85 and 11,121.33

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Solution

The fourth proportional to 19,618.42, 27,072.85 and 11,121.33 is: 15,347.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,618.42 : 27,072.85 = 11,121.33 : x
  2. Step 2: Convert to fraction form
    19,618.42/27,072.85 = 11,121.33/x
  3. Step 3: Cross multiply
    19,618.42x = 27,072.85 × 11,121.33
  4. Step 4: Simplify right side
    19,618.42x = 301,086,098.89
  5. Step 5: Solve for x
    x = 301,086,098.89/19,618.42
  6. Step 6: Final answer
    x = 15,347.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.