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Finding the Fourth Proportional to 8,008.96, 11,980.80 and 6,768.64

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Solution

The fourth proportional to 8,008.96, 11,980.80 and 6,768.64 is: 10,125.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,008.96 : 11,980.80 = 6,768.64 : x
  2. Step 2: Convert to fraction form
    8,008.96/11,980.80 = 6,768.64/x
  3. Step 3: Cross multiply
    8,008.96x = 11,980.80 × 6,768.64
  4. Step 4: Simplify right side
    8,008.96x = 81,093,722.11
  5. Step 5: Solve for x
    x = 81,093,722.11/8,008.96
  6. Step 6: Final answer
    x = 10,125.37

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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.