Home / 6,922.80-10,388.70-4,327.20

Finding the Fourth Proportional to 6,922.80, 10,388.70 and 4,327.20

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Solution

The fourth proportional to 6,922.80, 10,388.70 and 4,327.20 is: 6,493.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,922.80 : 10,388.70 = 4,327.20 : x
  2. Step 2: Convert to fraction form
    6,922.80/10,388.70 = 4,327.20/x
  3. Step 3: Cross multiply
    6,922.80x = 10,388.70 × 4,327.20
  4. Step 4: Simplify right side
    6,922.80x = 44,953,982.64
  5. Step 5: Solve for x
    x = 44,953,982.64/6,922.80
  6. Step 6: Final answer
    x = 6,493.61

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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.