Home / 8,285.09-12,413.66-6,977.75

Finding the Fourth Proportional to 8,285.09, 12,413.66 and 6,977.75

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Solution

The fourth proportional to 8,285.09, 12,413.66 and 6,977.75 is: 10,454.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,285.09 : 12,413.66 = 6,977.75 : x
  2. Step 2: Convert to fraction form
    8,285.09/12,413.66 = 6,977.75/x
  3. Step 3: Cross multiply
    8,285.09x = 12,413.66 × 6,977.75
  4. Step 4: Simplify right side
    8,285.09x = 86,619,319.11
  5. Step 5: Solve for x
    x = 86,619,319.11/8,285.09
  6. Step 6: Final answer
    x = 10,454.85

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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.