Home / 11,191.98-16,787.55-2,872.05

Finding the Fourth Proportional to 11,191.98, 16,787.55 and 2,872.05

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Solution

The fourth proportional to 11,191.98, 16,787.55 and 2,872.05 is: 4,307.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191.98 : 16,787.55 = 2,872.05 : x
  2. Step 2: Convert to fraction form
    11,191.98/16,787.55 = 2,872.05/x
  3. Step 3: Cross multiply
    11,191.98x = 16,787.55 × 2,872.05
  4. Step 4: Simplify right side
    11,191.98x = 48,214,682.98
  5. Step 5: Solve for x
    x = 48,214,682.98/11,191.98
  6. Step 6: Final answer
    x = 4,307.97

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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.