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Finding the Fourth Proportional to 7,817.68, 10,786.26 and 5,024.80

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Solution

The fourth proportional to 7,817.68, 10,786.26 and 5,024.80 is: 6,932.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,817.68 : 10,786.26 = 5,024.80 : x
  2. Step 2: Convert to fraction form
    7,817.68/10,786.26 = 5,024.80/x
  3. Step 3: Cross multiply
    7,817.68x = 10,786.26 × 5,024.80
  4. Step 4: Simplify right side
    7,817.68x = 54,198,799.25
  5. Step 5: Solve for x
    x = 54,198,799.25/7,817.68
  6. Step 6: Final answer
    x = 6,932.85

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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.