Home / 8,222.62-11,355.50-5,239.80

Finding the Fourth Proportional to 8,222.62, 11,355.50 and 5,239.80

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Solution

The fourth proportional to 8,222.62, 11,355.50 and 5,239.80 is: 7,236.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,222.62 : 11,355.50 = 5,239.80 : x
  2. Step 2: Convert to fraction form
    8,222.62/11,355.50 = 5,239.80/x
  3. Step 3: Cross multiply
    8,222.62x = 11,355.50 × 5,239.80
  4. Step 4: Simplify right side
    8,222.62x = 59,500,548.90
  5. Step 5: Solve for x
    x = 59,500,548.90/8,222.62
  6. Step 6: Final answer
    x = 7,236.20

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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.