Home / 11,211.69-16,817.37-3,821.29

Finding the Fourth Proportional to 11,211.69, 16,817.37 and 3,821.29

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Solution

The fourth proportional to 11,211.69, 16,817.37 and 3,821.29 is: 5,731.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,211.69 : 16,817.37 = 3,821.29 : x
  2. Step 2: Convert to fraction form
    11,211.69/16,817.37 = 3,821.29/x
  3. Step 3: Cross multiply
    11,211.69x = 16,817.37 × 3,821.29
  4. Step 4: Simplify right side
    11,211.69x = 64,264,047.81
  5. Step 5: Solve for x
    x = 64,264,047.81/11,211.69
  6. Step 6: Final answer
    x = 5,731.88

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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.