Home / 11,938.91-16,476.68-7,698.80

Finding the Fourth Proportional to 11,938.91, 16,476.68 and 7,698.80

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Solution

The fourth proportional to 11,938.91, 16,476.68 and 7,698.80 is: 10,624.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,938.91 : 16,476.68 = 7,698.80 : x
  2. Step 2: Convert to fraction form
    11,938.91/16,476.68 = 7,698.80/x
  3. Step 3: Cross multiply
    11,938.91x = 16,476.68 × 7,698.80
  4. Step 4: Simplify right side
    11,938.91x = 126,850,588.44
  5. Step 5: Solve for x
    x = 126,850,588.44/11,938.91
  6. Step 6: Final answer
    x = 10,624.97

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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.