Home / 7,847.86-10,830.24-4,311.30

Finding the Fourth Proportional to 7,847.86, 10,830.24 and 4,311.30

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Solution

The fourth proportional to 7,847.86, 10,830.24 and 4,311.30 is: 5,949.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,847.86 : 10,830.24 = 4,311.30 : x
  2. Step 2: Convert to fraction form
    7,847.86/10,830.24 = 4,311.30/x
  3. Step 3: Cross multiply
    7,847.86x = 10,830.24 × 4,311.30
  4. Step 4: Simplify right side
    7,847.86x = 46,692,413.71
  5. Step 5: Solve for x
    x = 46,692,413.71/7,847.86
  6. Step 6: Final answer
    x = 5,949.70

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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.