Home / 19,189.85-28,782.41-5,150.98

Finding the Fourth Proportional to 19,189.85, 28,782.41 and 5,150.98

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Solution

The fourth proportional to 19,189.85, 28,782.41 and 5,150.98 is: 7,725.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,189.85 : 28,782.41 = 5,150.98 : x
  2. Step 2: Convert to fraction form
    19,189.85/28,782.41 = 5,150.98/x
  3. Step 3: Cross multiply
    19,189.85x = 28,782.41 × 5,150.98
  4. Step 4: Simplify right side
    19,189.85x = 148,257,618.26
  5. Step 5: Solve for x
    x = 148,257,618.26/19,189.85
  6. Step 6: Final answer
    x = 7,725.84

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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.