Home / 8,619.80-11,896.42-5,261.89

Finding the Fourth Proportional to 8,619.80, 11,896.42 and 5,261.89

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Solution

The fourth proportional to 8,619.80, 11,896.42 and 5,261.89 is: 7,262.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.80 : 11,896.42 = 5,261.89 : x
  2. Step 2: Convert to fraction form
    8,619.80/11,896.42 = 5,261.89/x
  3. Step 3: Cross multiply
    8,619.80x = 11,896.42 × 5,261.89
  4. Step 4: Simplify right side
    8,619.80x = 62,597,653.43
  5. Step 5: Solve for x
    x = 62,597,653.43/8,619.80
  6. Step 6: Final answer
    x = 7,262.08

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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.