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Finding the Fourth Proportional to 7,719.27, 11,551.23 and 6,682.84

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Solution

The fourth proportional to 7,719.27, 11,551.23 and 6,682.84 is: 10,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719.27 : 11,551.23 = 6,682.84 : x
  2. Step 2: Convert to fraction form
    7,719.27/11,551.23 = 6,682.84/x
  3. Step 3: Cross multiply
    7,719.27x = 11,551.23 × 6,682.84
  4. Step 4: Simplify right side
    7,719.27x = 77,195,060.54
  5. Step 5: Solve for x
    x = 77,195,060.54/7,719.27
  6. Step 6: Final answer
    x = 10,000.30

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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.