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Finding the Fourth Proportional to 11,874.69, 16,389.78 and 6,841.82

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Solution

The fourth proportional to 11,874.69, 16,389.78 and 6,841.82 is: 9,443.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,874.69 : 16,389.78 = 6,841.82 : x
  2. Step 2: Convert to fraction form
    11,874.69/16,389.78 = 6,841.82/x
  3. Step 3: Cross multiply
    11,874.69x = 16,389.78 × 6,841.82
  4. Step 4: Simplify right side
    11,874.69x = 112,135,842.65
  5. Step 5: Solve for x
    x = 112,135,842.65/11,874.69
  6. Step 6: Final answer
    x = 9,443.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.