Home / 8,278.92-12,409.74-3,346.56

Finding the Fourth Proportional to 8,278.92, 12,409.74 and 3,346.56

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Solution

The fourth proportional to 8,278.92, 12,409.74 and 3,346.56 is: 5,016.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,278.92 : 12,409.74 = 3,346.56 : x
  2. Step 2: Convert to fraction form
    8,278.92/12,409.74 = 3,346.56/x
  3. Step 3: Cross multiply
    8,278.92x = 12,409.74 × 3,346.56
  4. Step 4: Simplify right side
    8,278.92x = 41,529,939.49
  5. Step 5: Solve for x
    x = 41,529,939.49/8,278.92
  6. Step 6: Final answer
    x = 5,016.35

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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.