Home / 11,878.82-16,394.51-6,842.06

Finding the Fourth Proportional to 11,878.82, 16,394.51 and 6,842.06

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Solution

The fourth proportional to 11,878.82, 16,394.51 and 6,842.06 is: 9,443.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,878.82 : 16,394.51 = 6,842.06 : x
  2. Step 2: Convert to fraction form
    11,878.82/16,394.51 = 6,842.06/x
  3. Step 3: Cross multiply
    11,878.82x = 16,394.51 × 6,842.06
  4. Step 4: Simplify right side
    11,878.82x = 112,172,217.70
  5. Step 5: Solve for x
    x = 112,172,217.70/11,878.82
  6. Step 6: Final answer
    x = 9,443.04

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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.