Home / 11,995.49-18,084.58-11,149.85

Finding the Fourth Proportional to 11,995.49, 18,084.58 and 11,149.85

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Solution

The fourth proportional to 11,995.49, 18,084.58 and 11,149.85 is: 16,809.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,995.49 : 18,084.58 = 11,149.85 : x
  2. Step 2: Convert to fraction form
    11,995.49/18,084.58 = 11,149.85/x
  3. Step 3: Cross multiply
    11,995.49x = 18,084.58 × 11,149.85
  4. Step 4: Simplify right side
    11,995.49x = 201,640,434.37
  5. Step 5: Solve for x
    x = 201,640,434.37/11,995.49
  6. Step 6: Final answer
    x = 16,809.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.