Home / 19,288.80-28,926.96-6,138.09

Finding the Fourth Proportional to 19,288.80, 28,926.96 and 6,138.09

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Solution

The fourth proportional to 19,288.80, 28,926.96 and 6,138.09 is: 9,205.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,288.80 : 28,926.96 = 6,138.09 : x
  2. Step 2: Convert to fraction form
    19,288.80/28,926.96 = 6,138.09/x
  3. Step 3: Cross multiply
    19,288.80x = 28,926.96 × 6,138.09
  4. Step 4: Simplify right side
    19,288.80x = 177,556,283.91
  5. Step 5: Solve for x
    x = 177,556,283.91/19,288.80
  6. Step 6: Final answer
    x = 9,205.15

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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.