Home / 7,427.92-11,142.20-4,161.84

Finding the Fourth Proportional to 7,427.92, 11,142.20 and 4,161.84

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Solution

The fourth proportional to 7,427.92, 11,142.20 and 4,161.84 is: 6,242.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.92 : 11,142.20 = 4,161.84 : x
  2. Step 2: Convert to fraction form
    7,427.92/11,142.20 = 4,161.84/x
  3. Step 3: Cross multiply
    7,427.92x = 11,142.20 × 4,161.84
  4. Step 4: Simplify right side
    7,427.92x = 46,372,053.65
  5. Step 5: Solve for x
    x = 46,372,053.65/7,427.92
  6. Step 6: Final answer
    x = 6,242.94

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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.