Home / 7,195.06-9,900.39-5,515.84

Finding the Fourth Proportional to 7,195.06, 9,900.39 and 5,515.84

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Solution

The fourth proportional to 7,195.06, 9,900.39 and 5,515.84 is: 7,589.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,195.06 : 9,900.39 = 5,515.84 : x
  2. Step 2: Convert to fraction form
    7,195.06/9,900.39 = 5,515.84/x
  3. Step 3: Cross multiply
    7,195.06x = 9,900.39 × 5,515.84
  4. Step 4: Simplify right side
    7,195.06x = 54,608,967.18
  5. Step 5: Solve for x
    x = 54,608,967.18/7,195.06
  6. Step 6: Final answer
    x = 7,589.79

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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.