Home / 8,990.12-13,481.10-3,793.16

Finding the Fourth Proportional to 8,990.12, 13,481.10 and 3,793.16

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Solution

The fourth proportional to 8,990.12, 13,481.10 and 3,793.16 is: 5,688.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,990.12 : 13,481.10 = 3,793.16 : x
  2. Step 2: Convert to fraction form
    8,990.12/13,481.10 = 3,793.16/x
  3. Step 3: Cross multiply
    8,990.12x = 13,481.10 × 3,793.16
  4. Step 4: Simplify right side
    8,990.12x = 51,135,969.28
  5. Step 5: Solve for x
    x = 51,135,969.28/8,990.12
  6. Step 6: Final answer
    x = 5,688.02

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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.