Home / 18,431.68-27,658.32-6,745.72

Finding the Fourth Proportional to 18,431.68, 27,658.32 and 6,745.72

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Solution

The fourth proportional to 18,431.68, 27,658.32 and 6,745.72 is: 10,122.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,431.68 : 27,658.32 = 6,745.72 : x
  2. Step 2: Convert to fraction form
    18,431.68/27,658.32 = 6,745.72/x
  3. Step 3: Cross multiply
    18,431.68x = 27,658.32 × 6,745.72
  4. Step 4: Simplify right side
    18,431.68x = 186,575,282.39
  5. Step 5: Solve for x
    x = 186,575,282.39/18,431.68
  6. Step 6: Final answer
    x = 10,122.53

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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.