Home / 19,209.09-28,797.20-7,371.36

Finding the Fourth Proportional to 19,209.09, 28,797.20 and 7,371.36

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Solution

The fourth proportional to 19,209.09, 28,797.20 and 7,371.36 is: 11,050.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,209.09 : 28,797.20 = 7,371.36 : x
  2. Step 2: Convert to fraction form
    19,209.09/28,797.20 = 7,371.36/x
  3. Step 3: Cross multiply
    19,209.09x = 28,797.20 × 7,371.36
  4. Step 4: Simplify right side
    19,209.09x = 212,274,397.01
  5. Step 5: Solve for x
    x = 212,274,397.01/19,209.09
  6. Step 6: Final answer
    x = 11,050.73

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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.