Home / 18,378.07-27,576.21-7,284.51

Finding the Fourth Proportional to 18,378.07, 27,576.21 and 7,284.51

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Solution

The fourth proportional to 18,378.07, 27,576.21 and 7,284.51 is: 10,930.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378.07 : 27,576.21 = 7,284.51 : x
  2. Step 2: Convert to fraction form
    18,378.07/27,576.21 = 7,284.51/x
  3. Step 3: Cross multiply
    18,378.07x = 27,576.21 × 7,284.51
  4. Step 4: Simplify right side
    18,378.07x = 200,879,177.51
  5. Step 5: Solve for x
    x = 200,879,177.51/18,378.07
  6. Step 6: Final answer
    x = 10,930.38

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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.