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Finding the Fourth Proportional to 7,855.56, 10,828.08 and 5,960.97

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Solution

The fourth proportional to 7,855.56, 10,828.08 and 5,960.97 is: 8,216.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,855.56 : 10,828.08 = 5,960.97 : x
  2. Step 2: Convert to fraction form
    7,855.56/10,828.08 = 5,960.97/x
  3. Step 3: Cross multiply
    7,855.56x = 10,828.08 × 5,960.97
  4. Step 4: Simplify right side
    7,855.56x = 64,545,860.04
  5. Step 5: Solve for x
    x = 64,545,860.04/7,855.56
  6. Step 6: Final answer
    x = 8,216.58

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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.