Home / 11,191.55-16,787.33-2,871.57

Finding the Fourth Proportional to 11,191.55, 16,787.33 and 2,871.57

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Solution

The fourth proportional to 11,191.55, 16,787.33 and 2,871.57 is: 4,307.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191.55 : 16,787.33 = 2,871.57 : x
  2. Step 2: Convert to fraction form
    11,191.55/16,787.33 = 2,871.57/x
  3. Step 3: Cross multiply
    11,191.55x = 16,787.33 × 2,871.57
  4. Step 4: Simplify right side
    11,191.55x = 48,205,894.91
  5. Step 5: Solve for x
    x = 48,205,894.91/11,191.55
  6. Step 6: Final answer
    x = 4,307.35

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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.