Home / 7,949.20-11,916.70-3,015.49

Finding the Fourth Proportional to 7,949.20, 11,916.70 and 3,015.49

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Solution

The fourth proportional to 7,949.20, 11,916.70 and 3,015.49 is: 4,520.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,949.20 : 11,916.70 = 3,015.49 : x
  2. Step 2: Convert to fraction form
    7,949.20/11,916.70 = 3,015.49/x
  3. Step 3: Cross multiply
    7,949.20x = 11,916.70 × 3,015.49
  4. Step 4: Simplify right side
    7,949.20x = 35,934,689.68
  5. Step 5: Solve for x
    x = 35,934,689.68/7,949.20
  6. Step 6: Final answer
    x = 4,520.54

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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.