Home / 11,281.45-16,918.89-3,383.65

Finding the Fourth Proportional to 11,281.45, 16,918.89 and 3,383.65

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Solution

The fourth proportional to 11,281.45, 16,918.89 and 3,383.65 is: 5,074.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,281.45 : 16,918.89 = 3,383.65 : x
  2. Step 2: Convert to fraction form
    11,281.45/16,918.89 = 3,383.65/x
  3. Step 3: Cross multiply
    11,281.45x = 16,918.89 × 3,383.65
  4. Step 4: Simplify right side
    11,281.45x = 57,247,602.15
  5. Step 5: Solve for x
    x = 57,247,602.15/11,281.45
  6. Step 6: Final answer
    x = 5,074.49

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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.