Home / 7,777.44-11,669.61-4,078.80

Finding the Fourth Proportional to 7,777.44, 11,669.61 and 4,078.80

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Solution

The fourth proportional to 7,777.44, 11,669.61 and 4,078.80 is: 6,120.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777.44 : 11,669.61 = 4,078.80 : x
  2. Step 2: Convert to fraction form
    7,777.44/11,669.61 = 4,078.80/x
  3. Step 3: Cross multiply
    7,777.44x = 11,669.61 × 4,078.80
  4. Step 4: Simplify right side
    7,777.44x = 47,598,005.27
  5. Step 5: Solve for x
    x = 47,598,005.27/7,777.44
  6. Step 6: Final answer
    x = 6,120.01

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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.