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Finding the Fourth Proportional to 18,950.06, 28,424.97 and 4,910.06

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Solution

The fourth proportional to 18,950.06, 28,424.97 and 4,910.06 is: 7,365.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,950.06 : 28,424.97 = 4,910.06 : x
  2. Step 2: Convert to fraction form
    18,950.06/28,424.97 = 4,910.06/x
  3. Step 3: Cross multiply
    18,950.06x = 28,424.97 × 4,910.06
  4. Step 4: Simplify right side
    18,950.06x = 139,568,379.26
  5. Step 5: Solve for x
    x = 139,568,379.26/18,950.06
  6. Step 6: Final answer
    x = 7,365.06

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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.