Home / 19,192.71-28,786.79-6,711.78

Finding the Fourth Proportional to 19,192.71, 28,786.79 and 6,711.78

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Solution

The fourth proportional to 19,192.71, 28,786.79 and 6,711.78 is: 10,066.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,192.71 : 28,786.79 = 6,711.78 : x
  2. Step 2: Convert to fraction form
    19,192.71/28,786.79 = 6,711.78/x
  3. Step 3: Cross multiply
    19,192.71x = 28,786.79 × 6,711.78
  4. Step 4: Simplify right side
    19,192.71x = 193,210,567.83
  5. Step 5: Solve for x
    x = 193,210,567.83/19,192.71
  6. Step 6: Final answer
    x = 10,066.87

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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.