Home / 11,977.28-17,944.02-8,682.20

Finding the Fourth Proportional to 11,977.28, 17,944.02 and 8,682.20

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Solution

The fourth proportional to 11,977.28, 17,944.02 and 8,682.20 is: 13,007.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,977.28 : 17,944.02 = 8,682.20 : x
  2. Step 2: Convert to fraction form
    11,977.28/17,944.02 = 8,682.20/x
  3. Step 3: Cross multiply
    11,977.28x = 17,944.02 × 8,682.20
  4. Step 4: Simplify right side
    11,977.28x = 155,793,480.72
  5. Step 5: Solve for x
    x = 155,793,480.72/11,977.28
  6. Step 6: Final answer
    x = 13,007.42

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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.