Home / 8,222.12-12,331.72-2,674.64

Finding the Fourth Proportional to 8,222.12, 12,331.72 and 2,674.64

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Solution

The fourth proportional to 8,222.12, 12,331.72 and 2,674.64 is: 4,011.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,222.12 : 12,331.72 = 2,674.64 : x
  2. Step 2: Convert to fraction form
    8,222.12/12,331.72 = 2,674.64/x
  3. Step 3: Cross multiply
    8,222.12x = 12,331.72 × 2,674.64
  4. Step 4: Simplify right side
    8,222.12x = 32,982,911.58
  5. Step 5: Solve for x
    x = 32,982,911.58/8,222.12
  6. Step 6: Final answer
    x = 4,011.49

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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.