Home / 12,289.26-18,433.49-6,745.22

Finding the Fourth Proportional to 12,289.26, 18,433.49 and 6,745.22

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Solution

The fourth proportional to 12,289.26, 18,433.49 and 6,745.22 is: 10,117.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,289.26 : 18,433.49 = 6,745.22 : x
  2. Step 2: Convert to fraction form
    12,289.26/18,433.49 = 6,745.22/x
  3. Step 3: Cross multiply
    12,289.26x = 18,433.49 × 6,745.22
  4. Step 4: Simplify right side
    12,289.26x = 124,337,819.52
  5. Step 5: Solve for x
    x = 124,337,819.52/12,289.26
  6. Step 6: Final answer
    x = 10,117.60

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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.