Home / 19,410.68-26,786.76-11,028.80

Finding the Fourth Proportional to 19,410.68, 26,786.76 and 11,028.80

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Solution

The fourth proportional to 19,410.68, 26,786.76 and 11,028.80 is: 15,219.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,410.68 : 26,786.76 = 11,028.80 : x
  2. Step 2: Convert to fraction form
    19,410.68/26,786.76 = 11,028.80/x
  3. Step 3: Cross multiply
    19,410.68x = 26,786.76 × 11,028.80
  4. Step 4: Simplify right side
    19,410.68x = 295,425,818.69
  5. Step 5: Solve for x
    x = 295,425,818.69/19,410.68
  6. Step 6: Final answer
    x = 15,219.76

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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.