Home / 11,236.66-15,520.39-8,416.64

Finding the Fourth Proportional to 11,236.66, 15,520.39 and 8,416.64

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Solution

The fourth proportional to 11,236.66, 15,520.39 and 8,416.64 is: 11,625.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,236.66 : 15,520.39 = 8,416.64 : x
  2. Step 2: Convert to fraction form
    11,236.66/15,520.39 = 8,416.64/x
  3. Step 3: Cross multiply
    11,236.66x = 15,520.39 × 8,416.64
  4. Step 4: Simplify right side
    11,236.66x = 130,629,415.60
  5. Step 5: Solve for x
    x = 130,629,415.60/11,236.66
  6. Step 6: Final answer
    x = 11,625.29

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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.