Home / 7,994.40-11,986.20-4,095.60

Finding the Fourth Proportional to 7,994.40, 11,986.20 and 4,095.60

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Solution

The fourth proportional to 7,994.40, 11,986.20 and 4,095.60 is: 6,140.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.40 : 11,986.20 = 4,095.60 : x
  2. Step 2: Convert to fraction form
    7,994.40/11,986.20 = 4,095.60/x
  3. Step 3: Cross multiply
    7,994.40x = 11,986.20 × 4,095.60
  4. Step 4: Simplify right side
    7,994.40x = 49,090,680.72
  5. Step 5: Solve for x
    x = 49,090,680.72/7,994.40
  6. Step 6: Final answer
    x = 6,140.63

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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.