Home / 11,011.89-16,517.97-3,220.50

Finding the Fourth Proportional to 11,011.89, 16,517.97 and 3,220.50

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Solution

The fourth proportional to 11,011.89, 16,517.97 and 3,220.50 is: 4,830.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,011.89 : 16,517.97 = 3,220.50 : x
  2. Step 2: Convert to fraction form
    11,011.89/16,517.97 = 3,220.50/x
  3. Step 3: Cross multiply
    11,011.89x = 16,517.97 × 3,220.50
  4. Step 4: Simplify right side
    11,011.89x = 53,196,122.39
  5. Step 5: Solve for x
    x = 53,196,122.39/11,011.89
  6. Step 6: Final answer
    x = 4,830.79

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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.