Home / 19,768.44-27,279.65-11,815.05

Finding the Fourth Proportional to 19,768.44, 27,279.65 and 11,815.05

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Solution

The fourth proportional to 19,768.44, 27,279.65 and 11,815.05 is: 16,304.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,768.44 : 27,279.65 = 11,815.05 : x
  2. Step 2: Convert to fraction form
    19,768.44/27,279.65 = 11,815.05/x
  3. Step 3: Cross multiply
    19,768.44x = 27,279.65 × 11,815.05
  4. Step 4: Simplify right side
    19,768.44x = 322,310,428.73
  5. Step 5: Solve for x
    x = 322,310,428.73/19,768.44
  6. Step 6: Final answer
    x = 16,304.29

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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.