Home / 11,211.86-16,819.16-4,642.66

Finding the Fourth Proportional to 11,211.86, 16,819.16 and 4,642.66

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Solution

The fourth proportional to 11,211.86, 16,819.16 and 4,642.66 is: 6,964.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,211.86 : 16,819.16 = 4,642.66 : x
  2. Step 2: Convert to fraction form
    11,211.86/16,819.16 = 4,642.66/x
  3. Step 3: Cross multiply
    11,211.86x = 16,819.16 × 4,642.66
  4. Step 4: Simplify right side
    11,211.86x = 78,085,576.10
  5. Step 5: Solve for x
    x = 78,085,576.10/11,211.86
  6. Step 6: Final answer
    x = 6,964.55

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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.