Home / 19,398.20-29,109.44-8,866.56

Finding the Fourth Proportional to 19,398.20, 29,109.44 and 8,866.56

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Solution

The fourth proportional to 19,398.20, 29,109.44 and 8,866.56 is: 13,305.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,398.20 : 29,109.44 = 8,866.56 : x
  2. Step 2: Convert to fraction form
    19,398.20/29,109.44 = 8,866.56/x
  3. Step 3: Cross multiply
    19,398.20x = 29,109.44 × 8,866.56
  4. Step 4: Simplify right side
    19,398.20x = 258,100,596.33
  5. Step 5: Solve for x
    x = 258,100,596.33/19,398.20
  6. Step 6: Final answer
    x = 13,305.39

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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.