Home / 19,065.37-28,570.82-8,378.94

Finding the Fourth Proportional to 19,065.37, 28,570.82 and 8,378.94

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Solution

The fourth proportional to 19,065.37, 28,570.82 and 8,378.94 is: 12,556.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,065.37 : 28,570.82 = 8,378.94 : x
  2. Step 2: Convert to fraction form
    19,065.37/28,570.82 = 8,378.94/x
  3. Step 3: Cross multiply
    19,065.37x = 28,570.82 × 8,378.94
  4. Step 4: Simplify right side
    19,065.37x = 239,393,144.64
  5. Step 5: Solve for x
    x = 239,393,144.64/19,065.37
  6. Step 6: Final answer
    x = 12,556.44

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1.5x scale

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.