Home / 19,189.66-28,783.14-7,179.52

Finding the Fourth Proportional to 19,189.66, 28,783.14 and 7,179.52

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Solution

The fourth proportional to 19,189.66, 28,783.14 and 7,179.52 is: 10,768.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,189.66 : 28,783.14 = 7,179.52 : x
  2. Step 2: Convert to fraction form
    19,189.66/28,783.14 = 7,179.52/x
  3. Step 3: Cross multiply
    19,189.66x = 28,783.14 × 7,179.52
  4. Step 4: Simplify right side
    19,189.66x = 206,648,949.48
  5. Step 5: Solve for x
    x = 206,648,949.48/19,189.66
  6. Step 6: Final answer
    x = 10,768.77

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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.