Home / 8,990.22-13,485.44-3,443.90

Finding the Fourth Proportional to 8,990.22, 13,485.44 and 3,443.90

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Solution

The fourth proportional to 8,990.22, 13,485.44 and 3,443.90 is: 5,165.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,990.22 : 13,485.44 = 3,443.90 : x
  2. Step 2: Convert to fraction form
    8,990.22/13,485.44 = 3,443.90/x
  3. Step 3: Cross multiply
    8,990.22x = 13,485.44 × 3,443.90
  4. Step 4: Simplify right side
    8,990.22x = 46,442,439.39
  5. Step 5: Solve for x
    x = 46,442,439.39/8,990.22
  6. Step 6: Final answer
    x = 5,165.88

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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.