Home / 8,220.69-12,331.04-2,674.59

Finding the Fourth Proportional to 8,220.69, 12,331.04 and 2,674.59

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Solution

The fourth proportional to 8,220.69, 12,331.04 and 2,674.59 is: 4,011.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.69 : 12,331.04 = 2,674.59 : x
  2. Step 2: Convert to fraction form
    8,220.69/12,331.04 = 2,674.59/x
  3. Step 3: Cross multiply
    8,220.69x = 12,331.04 × 2,674.59
  4. Step 4: Simplify right side
    8,220.69x = 32,980,520.70
  5. Step 5: Solve for x
    x = 32,980,520.70/8,220.69
  6. Step 6: Final answer
    x = 4,011.89

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Similar ratio
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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.