Home / 19,015.12-28,452.60-11,874.48

Finding the Fourth Proportional to 19,015.12, 28,452.60 and 11,874.48

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Solution

The fourth proportional to 19,015.12, 28,452.60 and 11,874.48 is: 17,767.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,015.12 : 28,452.60 = 11,874.48 : x
  2. Step 2: Convert to fraction form
    19,015.12/28,452.60 = 11,874.48/x
  3. Step 3: Cross multiply
    19,015.12x = 28,452.60 × 11,874.48
  4. Step 4: Simplify right side
    19,015.12x = 337,859,829.65
  5. Step 5: Solve for x
    x = 337,859,829.65/19,015.12
  6. Step 6: Final answer
    x = 17,767.96

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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.