Home / 8,190.16-12,290.92-3,259.34

Finding the Fourth Proportional to 8,190.16, 12,290.92 and 3,259.34

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Solution

The fourth proportional to 8,190.16, 12,290.92 and 3,259.34 is: 4,891.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190.16 : 12,290.92 = 3,259.34 : x
  2. Step 2: Convert to fraction form
    8,190.16/12,290.92 = 3,259.34/x
  3. Step 3: Cross multiply
    8,190.16x = 12,290.92 × 3,259.34
  4. Step 4: Simplify right side
    8,190.16x = 40,060,287.19
  5. Step 5: Solve for x
    x = 40,060,287.19/8,190.16
  6. Step 6: Final answer
    x = 4,891.27

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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.