Home / 12,413.30-18,620.26-3,648.49

Finding the Fourth Proportional to 12,413.30, 18,620.26 and 3,648.49

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Solution

The fourth proportional to 12,413.30, 18,620.26 and 3,648.49 is: 5,472.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,413.30 : 18,620.26 = 3,648.49 : x
  2. Step 2: Convert to fraction form
    12,413.30/18,620.26 = 3,648.49/x
  3. Step 3: Cross multiply
    12,413.30x = 18,620.26 × 3,648.49
  4. Step 4: Simplify right side
    12,413.30x = 67,935,776.74
  5. Step 5: Solve for x
    x = 67,935,776.74/12,413.30
  6. Step 6: Final answer
    x = 5,472.82

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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.