Home / 11,316.70-16,979.91-8,050.78

Finding the Fourth Proportional to 11,316.70, 16,979.91 and 8,050.78

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Solution

The fourth proportional to 11,316.70, 16,979.91 and 8,050.78 is: 12,079.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.70 : 16,979.91 = 8,050.78 : x
  2. Step 2: Convert to fraction form
    11,316.70/16,979.91 = 8,050.78/x
  3. Step 3: Cross multiply
    11,316.70x = 16,979.91 × 8,050.78
  4. Step 4: Simplify right side
    11,316.70x = 136,701,519.83
  5. Step 5: Solve for x
    x = 136,701,519.83/11,316.70
  6. Step 6: Final answer
    x = 12,079.63

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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.