Home / 8,222.40-11,348.16-5,239.44

Finding the Fourth Proportional to 8,222.40, 11,348.16 and 5,239.44

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Solution

The fourth proportional to 8,222.40, 11,348.16 and 5,239.44 is: 7,231.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,222.40 : 11,348.16 = 5,239.44 : x
  2. Step 2: Convert to fraction form
    8,222.40/11,348.16 = 5,239.44/x
  3. Step 3: Cross multiply
    8,222.40x = 11,348.16 × 5,239.44
  4. Step 4: Simplify right side
    8,222.40x = 59,458,003.43
  5. Step 5: Solve for x
    x = 59,458,003.43/8,222.40
  6. Step 6: Final answer
    x = 7,231.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.