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Finding the Fourth Proportional to 15,132.30, 20,879.52 and 8,843.46

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Solution

The fourth proportional to 15,132.30, 20,879.52 and 8,843.46 is: 12,202.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,132.30 : 20,879.52 = 8,843.46 : x
  2. Step 2: Convert to fraction form
    15,132.30/20,879.52 = 8,843.46/x
  3. Step 3: Cross multiply
    15,132.30x = 20,879.52 × 8,843.46
  4. Step 4: Simplify right side
    15,132.30x = 184,647,199.94
  5. Step 5: Solve for x
    x = 184,647,199.94/15,132.30
  6. Step 6: Final answer
    x = 12,202.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.