Home / 11,280.94-16,918.14-3,383.12

Finding the Fourth Proportional to 11,280.94, 16,918.14 and 3,383.12

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Solution

The fourth proportional to 11,280.94, 16,918.14 and 3,383.12 is: 5,073.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,280.94 : 16,918.14 = 3,383.12 : x
  2. Step 2: Convert to fraction form
    11,280.94/16,918.14 = 3,383.12/x
  3. Step 3: Cross multiply
    11,280.94x = 16,918.14 × 3,383.12
  4. Step 4: Simplify right side
    11,280.94x = 57,236,097.80
  5. Step 5: Solve for x
    x = 57,236,097.80/11,280.94
  6. Step 6: Final answer
    x = 5,073.70

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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.