Home / 7,868.55-11,804.51-2,603.96

Finding the Fourth Proportional to 7,868.55, 11,804.51 and 2,603.96

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Solution

The fourth proportional to 7,868.55, 11,804.51 and 2,603.96 is: 3,906.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.55 : 11,804.51 = 2,603.96 : x
  2. Step 2: Convert to fraction form
    7,868.55/11,804.51 = 2,603.96/x
  3. Step 3: Cross multiply
    7,868.55x = 11,804.51 × 2,603.96
  4. Step 4: Simplify right side
    7,868.55x = 30,738,471.86
  5. Step 5: Solve for x
    x = 30,738,471.86/7,868.55
  6. Step 6: Final answer
    x = 3,906.50

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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.