Home / 11,316.96-16,971.39-3,919.46

Finding the Fourth Proportional to 11,316.96, 16,971.39 and 3,919.46

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Solution

The fourth proportional to 11,316.96, 16,971.39 and 3,919.46 is: 5,877.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.96 : 16,971.39 = 3,919.46 : x
  2. Step 2: Convert to fraction form
    11,316.96/16,971.39 = 3,919.46/x
  3. Step 3: Cross multiply
    11,316.96x = 16,971.39 × 3,919.46
  4. Step 4: Simplify right side
    11,316.96x = 66,518,599.39
  5. Step 5: Solve for x
    x = 66,518,599.39/11,316.96
  6. Step 6: Final answer
    x = 5,877.78

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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.