Home / 11,211.97-16,817.96-3,420.72

Finding the Fourth Proportional to 11,211.97, 16,817.96 and 3,420.72

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Solution

The fourth proportional to 11,211.97, 16,817.96 and 3,420.72 is: 5,131.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,211.97 : 16,817.96 = 3,420.72 : x
  2. Step 2: Convert to fraction form
    11,211.97/16,817.96 = 3,420.72/x
  3. Step 3: Cross multiply
    11,211.97x = 16,817.96 × 3,420.72
  4. Step 4: Simplify right side
    11,211.97x = 57,529,532.13
  5. Step 5: Solve for x
    x = 57,529,532.13/11,211.97
  6. Step 6: Final answer
    x = 5,131.08

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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.