Home / 19,179.60-28,773.32-8,086.30

Finding the Fourth Proportional to 19,179.60, 28,773.32 and 8,086.30

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Solution

The fourth proportional to 19,179.60, 28,773.32 and 8,086.30 is: 12,131.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,179.60 : 28,773.32 = 8,086.30 : x
  2. Step 2: Convert to fraction form
    19,179.60/28,773.32 = 8,086.30/x
  3. Step 3: Cross multiply
    19,179.60x = 28,773.32 × 8,086.30
  4. Step 4: Simplify right side
    19,179.60x = 232,669,697.52
  5. Step 5: Solve for x
    x = 232,669,697.52/19,179.60
  6. Step 6: Final answer
    x = 12,131.10

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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.