Home / 18,511.88-27,768.35-7,266.75

Finding the Fourth Proportional to 18,511.88, 27,768.35 and 7,266.75

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Solution

The fourth proportional to 18,511.88, 27,768.35 and 7,266.75 is: 10,900.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,511.88 : 27,768.35 = 7,266.75 : x
  2. Step 2: Convert to fraction form
    18,511.88/27,768.35 = 7,266.75/x
  3. Step 3: Cross multiply
    18,511.88x = 27,768.35 × 7,266.75
  4. Step 4: Simplify right side
    18,511.88x = 201,785,657.36
  5. Step 5: Solve for x
    x = 201,785,657.36/18,511.88
  6. Step 6: Final answer
    x = 10,900.33

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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.