Home / 12,183.22-18,272.08-5,603.08

Finding the Fourth Proportional to 12,183.22, 18,272.08 and 5,603.08

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Solution

The fourth proportional to 12,183.22, 18,272.08 and 5,603.08 is: 8,403.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,183.22 : 18,272.08 = 5,603.08 : x
  2. Step 2: Convert to fraction form
    12,183.22/18,272.08 = 5,603.08/x
  3. Step 3: Cross multiply
    12,183.22x = 18,272.08 × 5,603.08
  4. Step 4: Simplify right side
    12,183.22x = 102,379,926.01
  5. Step 5: Solve for x
    x = 102,379,926.01/12,183.22
  6. Step 6: Final answer
    x = 8,403.36

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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.