Home / 7,717.82-11,560.55-6,398.43

Finding the Fourth Proportional to 7,717.82, 11,560.55 and 6,398.43

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Solution

The fourth proportional to 7,717.82, 11,560.55 and 6,398.43 is: 9,584.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,717.82 : 11,560.55 = 6,398.43 : x
  2. Step 2: Convert to fraction form
    7,717.82/11,560.55 = 6,398.43/x
  3. Step 3: Cross multiply
    7,717.82x = 11,560.55 × 6,398.43
  4. Step 4: Simplify right side
    7,717.82x = 73,969,369.94
  5. Step 5: Solve for x
    x = 73,969,369.94/7,717.82
  6. Step 6: Final answer
    x = 9,584.23

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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.