Home / 7,739.88-11,611.86-4,447.08

Finding the Fourth Proportional to 7,739.88, 11,611.86 and 4,447.08

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Solution

The fourth proportional to 7,739.88, 11,611.86 and 4,447.08 is: 6,671.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,739.88 : 11,611.86 = 4,447.08 : x
  2. Step 2: Convert to fraction form
    7,739.88/11,611.86 = 4,447.08/x
  3. Step 3: Cross multiply
    7,739.88x = 11,611.86 × 4,447.08
  4. Step 4: Simplify right side
    7,739.88x = 51,638,870.37
  5. Step 5: Solve for x
    x = 51,638,870.37/7,739.88
  6. Step 6: Final answer
    x = 6,671.79

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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.