Home / 11,316.96-16,972.20-6,876

Finding the Fourth Proportional to 11,316.96, 16,972.20 and 6,876

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Solution

The fourth proportional to 11,316.96, 16,972.20 and 6,876 is: 10,312.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.96 : 16,972.20 = 6,876 : x
  2. Step 2: Convert to fraction form
    11,316.96/16,972.20 = 6,876/x
  3. Step 3: Cross multiply
    11,316.96x = 16,972.20 × 6,876
  4. Step 4: Simplify right side
    11,316.96x = 116,700,847.20
  5. Step 5: Solve for x
    x = 116,700,847.20/11,316.96
  6. Step 6: Final answer
    x = 10,312.03

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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.