Home / 11,304.40-16,942.20-8,222.80

Finding the Fourth Proportional to 11,304.40, 16,942.20 and 8,222.80

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Solution

The fourth proportional to 11,304.40, 16,942.20 and 8,222.80 is: 12,323.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,304.40 : 16,942.20 = 8,222.80 : x
  2. Step 2: Convert to fraction form
    11,304.40/16,942.20 = 8,222.80/x
  3. Step 3: Cross multiply
    11,304.40x = 16,942.20 × 8,222.80
  4. Step 4: Simplify right side
    11,304.40x = 139,312,322.16
  5. Step 5: Solve for x
    x = 139,312,322.16/11,304.40
  6. Step 6: Final answer
    x = 12,323.73

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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.