Home / 18,579.77-27,876.81-11,189.33

Finding the Fourth Proportional to 18,579.77, 27,876.81 and 11,189.33

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Solution

The fourth proportional to 18,579.77, 27,876.81 and 11,189.33 is: 16,788.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,579.77 : 27,876.81 = 11,189.33 : x
  2. Step 2: Convert to fraction form
    18,579.77/27,876.81 = 11,189.33/x
  3. Step 3: Cross multiply
    18,579.77x = 27,876.81 × 11,189.33
  4. Step 4: Simplify right side
    18,579.77x = 311,922,826.44
  5. Step 5: Solve for x
    x = 311,922,826.44/18,579.77
  6. Step 6: Final answer
    x = 16,788.30

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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.