Home / 8,949.22-12,348.43-5,172.73

Finding the Fourth Proportional to 8,949.22, 12,348.43 and 5,172.73

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Solution

The fourth proportional to 8,949.22, 12,348.43 and 5,172.73 is: 7,137.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,949.22 : 12,348.43 = 5,172.73 : x
  2. Step 2: Convert to fraction form
    8,949.22/12,348.43 = 5,172.73/x
  3. Step 3: Cross multiply
    8,949.22x = 12,348.43 × 5,172.73
  4. Step 4: Simplify right side
    8,949.22x = 63,875,107.25
  5. Step 5: Solve for x
    x = 63,875,107.25/8,949.22
  6. Step 6: Final answer
    x = 7,137.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.