Home / 7,840.06-11,744.94-4,879.70

Finding the Fourth Proportional to 7,840.06, 11,744.94 and 4,879.70

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Solution

The fourth proportional to 7,840.06, 11,744.94 and 4,879.70 is: 7,310.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,840.06 : 11,744.94 = 4,879.70 : x
  2. Step 2: Convert to fraction form
    7,840.06/11,744.94 = 4,879.70/x
  3. Step 3: Cross multiply
    7,840.06x = 11,744.94 × 4,879.70
  4. Step 4: Simplify right side
    7,840.06x = 57,311,783.72
  5. Step 5: Solve for x
    x = 57,311,783.72/7,840.06
  6. Step 6: Final answer
    x = 7,310.12

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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.