Home / 8,149.28-11,244.08-5,790.56

Finding the Fourth Proportional to 8,149.28, 11,244.08 and 5,790.56

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Solution

The fourth proportional to 8,149.28, 11,244.08 and 5,790.56 is: 7,989.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,149.28 : 11,244.08 = 5,790.56 : x
  2. Step 2: Convert to fraction form
    8,149.28/11,244.08 = 5,790.56/x
  3. Step 3: Cross multiply
    8,149.28x = 11,244.08 × 5,790.56
  4. Step 4: Simplify right side
    8,149.28x = 65,109,519.88
  5. Step 5: Solve for x
    x = 65,109,519.88/8,149.28
  6. Step 6: Final answer
    x = 7,989.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.