Home / 11,321.22-16,968.44-6,643.46

Finding the Fourth Proportional to 11,321.22, 16,968.44 and 6,643.46

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Solution

The fourth proportional to 11,321.22, 16,968.44 and 6,643.46 is: 9,957.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.22 : 16,968.44 = 6,643.46 : x
  2. Step 2: Convert to fraction form
    11,321.22/16,968.44 = 6,643.46/x
  3. Step 3: Cross multiply
    11,321.22x = 16,968.44 × 6,643.46
  4. Step 4: Simplify right side
    11,321.22x = 112,729,152.40
  5. Step 5: Solve for x
    x = 112,729,152.40/11,321.22
  6. Step 6: Final answer
    x = 9,957.33

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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.