Home / 9,620.23-13,279.45-5,644.68

Finding the Fourth Proportional to 9,620.23, 13,279.45 and 5,644.68

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Solution

The fourth proportional to 9,620.23, 13,279.45 and 5,644.68 is: 7,791.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,620.23 : 13,279.45 = 5,644.68 : x
  2. Step 2: Convert to fraction form
    9,620.23/13,279.45 = 5,644.68/x
  3. Step 3: Cross multiply
    9,620.23x = 13,279.45 × 5,644.68
  4. Step 4: Simplify right side
    9,620.23x = 74,958,245.83
  5. Step 5: Solve for x
    x = 74,958,245.83/9,620.23
  6. Step 6: Final answer
    x = 7,791.73

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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.