Home / 19,287.45-28,933.31-6,136.76

Finding the Fourth Proportional to 19,287.45, 28,933.31 and 6,136.76

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Solution

The fourth proportional to 19,287.45, 28,933.31 and 6,136.76 is: 9,205.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,287.45 : 28,933.31 = 6,136.76 : x
  2. Step 2: Convert to fraction form
    19,287.45/28,933.31 = 6,136.76/x
  3. Step 3: Cross multiply
    19,287.45x = 28,933.31 × 6,136.76
  4. Step 4: Simplify right side
    19,287.45x = 177,556,867.15
  5. Step 5: Solve for x
    x = 177,556,867.15/19,287.45
  6. Step 6: Final answer
    x = 9,205.82

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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.