Home / 8,253.78-12,378.73-4,922.96

Finding the Fourth Proportional to 8,253.78, 12,378.73 and 4,922.96

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Solution

The fourth proportional to 8,253.78, 12,378.73 and 4,922.96 is: 7,383.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,253.78 : 12,378.73 = 4,922.96 : x
  2. Step 2: Convert to fraction form
    8,253.78/12,378.73 = 4,922.96/x
  3. Step 3: Cross multiply
    8,253.78x = 12,378.73 × 4,922.96
  4. Step 4: Simplify right side
    8,253.78x = 60,939,949.39
  5. Step 5: Solve for x
    x = 60,939,949.39/8,253.78
  6. Step 6: Final answer
    x = 7,383.28

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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.