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Finding the Fourth Proportional to 8,628.02, 11,882.02 and 7,769.97

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Solution

The fourth proportional to 8,628.02, 11,882.02 and 7,769.97 is: 10,700.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,628.02 : 11,882.02 = 7,769.97 : x
  2. Step 2: Convert to fraction form
    8,628.02/11,882.02 = 7,769.97/x
  3. Step 3: Cross multiply
    8,628.02x = 11,882.02 × 7,769.97
  4. Step 4: Simplify right side
    8,628.02x = 92,322,879.53
  5. Step 5: Solve for x
    x = 92,322,879.53/8,628.02
  6. Step 6: Final answer
    x = 10,700.35

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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.