Home / 19,236.10-28,832.55-8,140.90

Finding the Fourth Proportional to 19,236.10, 28,832.55 and 8,140.90

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Solution

The fourth proportional to 19,236.10, 28,832.55 and 8,140.90 is: 12,202.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,236.10 : 28,832.55 = 8,140.90 : x
  2. Step 2: Convert to fraction form
    19,236.10/28,832.55 = 8,140.90/x
  3. Step 3: Cross multiply
    19,236.10x = 28,832.55 × 8,140.90
  4. Step 4: Simplify right side
    19,236.10x = 234,722,906.30
  5. Step 5: Solve for x
    x = 234,722,906.30/19,236.10
  6. Step 6: Final answer
    x = 12,202.21

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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.