Home / 11,415.38-17,128.02-4,025.12

Finding the Fourth Proportional to 11,415.38, 17,128.02 and 4,025.12

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Solution

The fourth proportional to 11,415.38, 17,128.02 and 4,025.12 is: 6,039.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,415.38 : 17,128.02 = 4,025.12 : x
  2. Step 2: Convert to fraction form
    11,415.38/17,128.02 = 4,025.12/x
  3. Step 3: Cross multiply
    11,415.38x = 17,128.02 × 4,025.12
  4. Step 4: Simplify right side
    11,415.38x = 68,942,335.86
  5. Step 5: Solve for x
    x = 68,942,335.86/11,415.38
  6. Step 6: Final answer
    x = 6,039.43

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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.