Home / 13,179-19,766.25-4,413.90

Finding the Fourth Proportional to 13,179, 19,766.25 and 4,413.90

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Solution

The fourth proportional to 13,179, 19,766.25 and 4,413.90 is: 6,620.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,179 : 19,766.25 = 4,413.90 : x
  2. Step 2: Convert to fraction form
    13,179/19,766.25 = 4,413.90/x
  3. Step 3: Cross multiply
    13,179x = 19,766.25 × 4,413.90
  4. Step 4: Simplify right side
    13,179x = 87,246,250.88
  5. Step 5: Solve for x
    x = 87,246,250.88/13,179
  6. Step 6: Final answer
    x = 6,620.10

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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.