Home / 19,064.68-28,581.66-8,128.36

Finding the Fourth Proportional to 19,064.68, 28,581.66 and 8,128.36

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Solution

The fourth proportional to 19,064.68, 28,581.66 and 8,128.36 is: 12,185.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,064.68 : 28,581.66 = 8,128.36 : x
  2. Step 2: Convert to fraction form
    19,064.68/28,581.66 = 8,128.36/x
  3. Step 3: Cross multiply
    19,064.68x = 28,581.66 × 8,128.36
  4. Step 4: Simplify right side
    19,064.68x = 232,322,021.88
  5. Step 5: Solve for x
    x = 232,322,021.88/19,064.68
  6. Step 6: Final answer
    x = 12,185.99

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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.