Home / 7,412.16-11,105.40-3,896.94

Finding the Fourth Proportional to 7,412.16, 11,105.40 and 3,896.94

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Solution

The fourth proportional to 7,412.16, 11,105.40 and 3,896.94 is: 5,838.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,412.16 : 11,105.40 = 3,896.94 : x
  2. Step 2: Convert to fraction form
    7,412.16/11,105.40 = 3,896.94/x
  3. Step 3: Cross multiply
    7,412.16x = 11,105.40 × 3,896.94
  4. Step 4: Simplify right side
    7,412.16x = 43,277,077.48
  5. Step 5: Solve for x
    x = 43,277,077.48/7,412.16
  6. Step 6: Final answer
    x = 5,838.66

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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.