Home / 6,824.35-9,420.96-4,172.61

Finding the Fourth Proportional to 6,824.35, 9,420.96 and 4,172.61

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Solution

The fourth proportional to 6,824.35, 9,420.96 and 4,172.61 is: 5,760.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,824.35 : 9,420.96 = 4,172.61 : x
  2. Step 2: Convert to fraction form
    6,824.35/9,420.96 = 4,172.61/x
  3. Step 3: Cross multiply
    6,824.35x = 9,420.96 × 4,172.61
  4. Step 4: Simplify right side
    6,824.35x = 39,310,019.41
  5. Step 5: Solve for x
    x = 39,310,019.41/6,824.35
  6. Step 6: Final answer
    x = 5,760.26

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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.