Home / 11,017.80-16,528.32-3,620.88

Finding the Fourth Proportional to 11,017.80, 16,528.32 and 3,620.88

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Solution

The fourth proportional to 11,017.80, 16,528.32 and 3,620.88 is: 5,431.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,017.80 : 16,528.32 = 3,620.88 : x
  2. Step 2: Convert to fraction form
    11,017.80/16,528.32 = 3,620.88/x
  3. Step 3: Cross multiply
    11,017.80x = 16,528.32 × 3,620.88
  4. Step 4: Simplify right side
    11,017.80x = 59,847,063.32
  5. Step 5: Solve for x
    x = 59,847,063.32/11,017.80
  6. Step 6: Final answer
    x = 5,431.85

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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.