Home / 11,278.49-16,911.61-3,379.91

Finding the Fourth Proportional to 11,278.49, 16,911.61 and 3,379.91

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Solution

The fourth proportional to 11,278.49, 16,911.61 and 3,379.91 is: 5,068.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,278.49 : 16,911.61 = 3,379.91 : x
  2. Step 2: Convert to fraction form
    11,278.49/16,911.61 = 3,379.91/x
  3. Step 3: Cross multiply
    11,278.49x = 16,911.61 × 3,379.91
  4. Step 4: Simplify right side
    11,278.49x = 57,159,626.75
  5. Step 5: Solve for x
    x = 57,159,626.75/11,278.49
  6. Step 6: Final answer
    x = 5,068.02

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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.