Home / 6,821.12-9,413.30-4,169.99

Finding the Fourth Proportional to 6,821.12, 9,413.30 and 4,169.99

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Solution

The fourth proportional to 6,821.12, 9,413.30 and 4,169.99 is: 5,754.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,821.12 : 9,413.30 = 4,169.99 : x
  2. Step 2: Convert to fraction form
    6,821.12/9,413.30 = 4,169.99/x
  3. Step 3: Cross multiply
    6,821.12x = 9,413.30 × 4,169.99
  4. Step 4: Simplify right side
    6,821.12x = 39,253,298.95
  5. Step 5: Solve for x
    x = 39,253,298.95/6,821.12
  6. Step 6: Final answer
    x = 5,754.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.