Home / 8,412.84-12,612.06-3,222.36

Finding the Fourth Proportional to 8,412.84, 12,612.06 and 3,222.36

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Solution

The fourth proportional to 8,412.84, 12,612.06 and 3,222.36 is: 4,830.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,412.84 : 12,612.06 = 3,222.36 : x
  2. Step 2: Convert to fraction form
    8,412.84/12,612.06 = 3,222.36/x
  3. Step 3: Cross multiply
    8,412.84x = 12,612.06 × 3,222.36
  4. Step 4: Simplify right side
    8,412.84x = 40,640,597.66
  5. Step 5: Solve for x
    x = 40,640,597.66/8,412.84
  6. Step 6: Final answer
    x = 4,830.78

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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.