Home / 6,611.09-9,123.21-3,778.43

Finding the Fourth Proportional to 6,611.09, 9,123.21 and 3,778.43

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Solution

The fourth proportional to 6,611.09, 9,123.21 and 3,778.43 is: 5,214.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,611.09 : 9,123.21 = 3,778.43 : x
  2. Step 2: Convert to fraction form
    6,611.09/9,123.21 = 3,778.43/x
  3. Step 3: Cross multiply
    6,611.09x = 9,123.21 × 3,778.43
  4. Step 4: Simplify right side
    6,611.09x = 34,471,410.36
  5. Step 5: Solve for x
    x = 34,471,410.36/6,611.09
  6. Step 6: Final answer
    x = 5,214.18

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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.