Home / 11,028.30-15,201.36-8,634.24

Finding the Fourth Proportional to 11,028.30, 15,201.36 and 8,634.24

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Solution

The fourth proportional to 11,028.30, 15,201.36 and 8,634.24 is: 11,901.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,028.30 : 15,201.36 = 8,634.24 : x
  2. Step 2: Convert to fraction form
    11,028.30/15,201.36 = 8,634.24/x
  3. Step 3: Cross multiply
    11,028.30x = 15,201.36 × 8,634.24
  4. Step 4: Simplify right side
    11,028.30x = 131,252,190.57
  5. Step 5: Solve for x
    x = 131,252,190.57/11,028.30
  6. Step 6: Final answer
    x = 11,901.40

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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.