Home / 13,179.60-19,770.12-4,413.72

Finding the Fourth Proportional to 13,179.60, 19,770.12 and 4,413.72

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Solution

The fourth proportional to 13,179.60, 19,770.12 and 4,413.72 is: 6,620.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,179.60 : 19,770.12 = 4,413.72 : x
  2. Step 2: Convert to fraction form
    13,179.60/19,770.12 = 4,413.72/x
  3. Step 3: Cross multiply
    13,179.60x = 19,770.12 × 4,413.72
  4. Step 4: Simplify right side
    13,179.60x = 87,259,774.05
  5. Step 5: Solve for x
    x = 87,259,774.05/13,179.60
  6. Step 6: Final answer
    x = 6,620.82

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1.5x scale

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.