Home / 8,133.28-12,189.92-3,744.64

Finding the Fourth Proportional to 8,133.28, 12,189.92 and 3,744.64

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Solution

The fourth proportional to 8,133.28, 12,189.92 and 3,744.64 is: 5,612.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,133.28 : 12,189.92 = 3,744.64 : x
  2. Step 2: Convert to fraction form
    8,133.28/12,189.92 = 3,744.64/x
  3. Step 3: Cross multiply
    8,133.28x = 12,189.92 × 3,744.64
  4. Step 4: Simplify right side
    8,133.28x = 45,646,862.03
  5. Step 5: Solve for x
    x = 45,646,862.03/8,133.28
  6. Step 6: Final answer
    x = 5,612.36

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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.