Home / 18,936.06-28,404.11-10,226.35

Finding the Fourth Proportional to 18,936.06, 28,404.11 and 10,226.35

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Solution

The fourth proportional to 18,936.06, 28,404.11 and 10,226.35 is: 15,339.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,936.06 : 28,404.11 = 10,226.35 : x
  2. Step 2: Convert to fraction form
    18,936.06/28,404.11 = 10,226.35/x
  3. Step 3: Cross multiply
    18,936.06x = 28,404.11 × 10,226.35
  4. Step 4: Simplify right side
    18,936.06x = 290,470,370.30
  5. Step 5: Solve for x
    x = 290,470,370.30/18,936.06
  6. Step 6: Final answer
    x = 15,339.54

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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.