Home / 13,360.52-20,040.60-6,413.96

Finding the Fourth Proportional to 13,360.52, 20,040.60 and 6,413.96

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Solution

The fourth proportional to 13,360.52, 20,040.60 and 6,413.96 is: 9,620.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,360.52 : 20,040.60 = 6,413.96 : x
  2. Step 2: Convert to fraction form
    13,360.52/20,040.60 = 6,413.96/x
  3. Step 3: Cross multiply
    13,360.52x = 20,040.60 × 6,413.96
  4. Step 4: Simplify right side
    13,360.52x = 128,539,606.78
  5. Step 5: Solve for x
    x = 128,539,606.78/13,360.52
  6. Step 6: Final answer
    x = 9,620.85

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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.