Home / 9,911.91-13,676.19-6,725.64

Finding the Fourth Proportional to 9,911.91, 13,676.19 and 6,725.64

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Solution

The fourth proportional to 9,911.91, 13,676.19 and 6,725.64 is: 9,279.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,911.91 : 13,676.19 = 6,725.64 : x
  2. Step 2: Convert to fraction form
    9,911.91/13,676.19 = 6,725.64/x
  3. Step 3: Cross multiply
    9,911.91x = 13,676.19 × 6,725.64
  4. Step 4: Simplify right side
    9,911.91x = 91,981,130.51
  5. Step 5: Solve for x
    x = 91,981,130.51/9,911.91
  6. Step 6: Final answer
    x = 9,279.86

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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.