Home / 18,266.29-27,378.69-7,729.73

Finding the Fourth Proportional to 18,266.29, 27,378.69 and 7,729.73

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Solution

The fourth proportional to 18,266.29, 27,378.69 and 7,729.73 is: 11,585.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,266.29 : 27,378.69 = 7,729.73 : x
  2. Step 2: Convert to fraction form
    18,266.29/27,378.69 = 7,729.73/x
  3. Step 3: Cross multiply
    18,266.29x = 27,378.69 × 7,729.73
  4. Step 4: Simplify right side
    18,266.29x = 211,629,949.90
  5. Step 5: Solve for x
    x = 211,629,949.90/18,266.29
  6. Step 6: Final answer
    x = 11,585.82

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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.