Home / 12,121.19-16,708.19-11,104.24

Finding the Fourth Proportional to 12,121.19, 16,708.19 and 11,104.24

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Solution

The fourth proportional to 12,121.19, 16,708.19 and 11,104.24 is: 15,306.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,121.19 : 16,708.19 = 11,104.24 : x
  2. Step 2: Convert to fraction form
    12,121.19/16,708.19 = 11,104.24/x
  3. Step 3: Cross multiply
    12,121.19x = 16,708.19 × 11,104.24
  4. Step 4: Simplify right side
    12,121.19x = 185,531,654.43
  5. Step 5: Solve for x
    x = 185,531,654.43/12,121.19
  6. Step 6: Final answer
    x = 15,306.39

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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.