Home / 11,211.30-16,816.34-3,419.50

Finding the Fourth Proportional to 11,211.30, 16,816.34 and 3,419.50

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Solution

The fourth proportional to 11,211.30, 16,816.34 and 3,419.50 is: 5,129.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,211.30 : 16,816.34 = 3,419.50 : x
  2. Step 2: Convert to fraction form
    11,211.30/16,816.34 = 3,419.50/x
  3. Step 3: Cross multiply
    11,211.30x = 16,816.34 × 3,419.50
  4. Step 4: Simplify right side
    11,211.30x = 57,503,474.63
  5. Step 5: Solve for x
    x = 57,503,474.63/11,211.30
  6. Step 6: Final answer
    x = 5,129.06

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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.