Home / 18,016.88-27,034.83-12,785.69

Finding the Fourth Proportional to 18,016.88, 27,034.83 and 12,785.69

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Solution

The fourth proportional to 18,016.88, 27,034.83 and 12,785.69 is: 19,185.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,016.88 : 27,034.83 = 12,785.69 : x
  2. Step 2: Convert to fraction form
    18,016.88/27,034.83 = 12,785.69/x
  3. Step 3: Cross multiply
    18,016.88x = 27,034.83 × 12,785.69
  4. Step 4: Simplify right side
    18,016.88x = 345,658,955.58
  5. Step 5: Solve for x
    x = 345,658,955.58/18,016.88
  6. Step 6: Final answer
    x = 19,185.28

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1.5x scale

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.