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Finding the Fourth Proportional to 12,603.03, 18,903.11 and 3,369.75

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Solution

The fourth proportional to 12,603.03, 18,903.11 and 3,369.75 is: 5,054.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603.03 : 18,903.11 = 3,369.75 : x
  2. Step 2: Convert to fraction form
    12,603.03/18,903.11 = 3,369.75/x
  3. Step 3: Cross multiply
    12,603.03x = 18,903.11 × 3,369.75
  4. Step 4: Simplify right side
    12,603.03x = 63,698,793.76
  5. Step 5: Solve for x
    x = 63,698,793.76/12,603.03
  6. Step 6: Final answer
    x = 5,054.24

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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.