Home / 19,196.12-28,756.92-11,778.68

Finding the Fourth Proportional to 19,196.12, 28,756.92 and 11,778.68

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Solution

The fourth proportional to 19,196.12, 28,756.92 and 11,778.68 is: 17,645.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,196.12 : 28,756.92 = 11,778.68 : x
  2. Step 2: Convert to fraction form
    19,196.12/28,756.92 = 11,778.68/x
  3. Step 3: Cross multiply
    19,196.12x = 28,756.92 × 11,778.68
  4. Step 4: Simplify right side
    19,196.12x = 338,718,558.47
  5. Step 5: Solve for x
    x = 338,718,558.47/19,196.12
  6. Step 6: Final answer
    x = 17,645.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.