Home / 10,928.25-16,390.96-3,531.96

Finding the Fourth Proportional to 10,928.25, 16,390.96 and 3,531.96

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Solution

The fourth proportional to 10,928.25, 16,390.96 and 3,531.96 is: 5,297.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,928.25 : 16,390.96 = 3,531.96 : x
  2. Step 2: Convert to fraction form
    10,928.25/16,390.96 = 3,531.96/x
  3. Step 3: Cross multiply
    10,928.25x = 16,390.96 × 3,531.96
  4. Step 4: Simplify right side
    10,928.25x = 57,892,206.25
  5. Step 5: Solve for x
    x = 57,892,206.25/10,928.25
  6. Step 6: Final answer
    x = 5,297.48

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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.