Home / 11,234.88-15,505.60-6,520.64

Finding the Fourth Proportional to 11,234.88, 15,505.60 and 6,520.64

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Solution

The fourth proportional to 11,234.88, 15,505.60 and 6,520.64 is: 8,999.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,234.88 : 15,505.60 = 6,520.64 : x
  2. Step 2: Convert to fraction form
    11,234.88/15,505.60 = 6,520.64/x
  3. Step 3: Cross multiply
    11,234.88x = 15,505.60 × 6,520.64
  4. Step 4: Simplify right side
    11,234.88x = 101,106,435.58
  5. Step 5: Solve for x
    x = 101,106,435.58/11,234.88
  6. Step 6: Final answer
    x = 8,999.33

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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.