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Finding the Fourth Proportional to 8,562.12, 11,811.48 and 6,670.32

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Solution

The fourth proportional to 8,562.12, 11,811.48 and 6,670.32 is: 9,201.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,562.12 : 11,811.48 = 6,670.32 : x
  2. Step 2: Convert to fraction form
    8,562.12/11,811.48 = 6,670.32/x
  3. Step 3: Cross multiply
    8,562.12x = 11,811.48 × 6,670.32
  4. Step 4: Simplify right side
    8,562.12x = 78,786,351.27
  5. Step 5: Solve for x
    x = 78,786,351.27/8,562.12
  6. Step 6: Final answer
    x = 9,201.73

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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.