Home / 19,106.92-28,609.62-12,857.32

Finding the Fourth Proportional to 19,106.92, 28,609.62 and 12,857.32

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Solution

The fourth proportional to 19,106.92, 28,609.62 and 12,857.32 is: 19,251.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,106.92 : 28,609.62 = 12,857.32 : x
  2. Step 2: Convert to fraction form
    19,106.92/28,609.62 = 12,857.32/x
  3. Step 3: Cross multiply
    19,106.92x = 28,609.62 × 12,857.32
  4. Step 4: Simplify right side
    19,106.92x = 367,843,039.42
  5. Step 5: Solve for x
    x = 367,843,039.42/19,106.92
  6. Step 6: Final answer
    x = 19,251.82

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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.