Home / 19,212.05-26,515.22-11,257.45

Finding the Fourth Proportional to 19,212.05, 26,515.22 and 11,257.45

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Solution

The fourth proportional to 19,212.05, 26,515.22 and 11,257.45 is: 15,536.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,212.05 : 26,515.22 = 11,257.45 : x
  2. Step 2: Convert to fraction form
    19,212.05/26,515.22 = 11,257.45/x
  3. Step 3: Cross multiply
    19,212.05x = 26,515.22 × 11,257.45
  4. Step 4: Simplify right side
    19,212.05x = 298,493,574.53
  5. Step 5: Solve for x
    x = 298,493,574.53/19,212.05
  6. Step 6: Final answer
    x = 15,536.79

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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.