Home / 11,881.35-16,390.89-6,843.74

Finding the Fourth Proportional to 11,881.35, 16,390.89 and 6,843.74

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Solution

The fourth proportional to 11,881.35, 16,390.89 and 6,843.74 is: 9,441.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,881.35 : 16,390.89 = 6,843.74 : x
  2. Step 2: Convert to fraction form
    11,881.35/16,390.89 = 6,843.74/x
  3. Step 3: Cross multiply
    11,881.35x = 16,390.89 × 6,843.74
  4. Step 4: Simplify right side
    11,881.35x = 112,174,907.57
  5. Step 5: Solve for x
    x = 112,174,907.57/11,881.35
  6. Step 6: Final answer
    x = 9,441.26

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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.