Home / 11,149.60-16,724.64-4,129.96

Finding the Fourth Proportional to 11,149.60, 16,724.64 and 4,129.96

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Solution

The fourth proportional to 11,149.60, 16,724.64 and 4,129.96 is: 6,195.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,149.60 : 16,724.64 = 4,129.96 : x
  2. Step 2: Convert to fraction form
    11,149.60/16,724.64 = 4,129.96/x
  3. Step 3: Cross multiply
    11,149.60x = 16,724.64 × 4,129.96
  4. Step 4: Simplify right side
    11,149.60x = 69,072,094.21
  5. Step 5: Solve for x
    x = 69,072,094.21/11,149.60
  6. Step 6: Final answer
    x = 6,195.03

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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.