Home / 11,107.56-16,661.28-4,177.20

Finding the Fourth Proportional to 11,107.56, 16,661.28 and 4,177.20

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Solution

The fourth proportional to 11,107.56, 16,661.28 and 4,177.20 is: 6,265.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,107.56 : 16,661.28 = 4,177.20 : x
  2. Step 2: Convert to fraction form
    11,107.56/16,661.28 = 4,177.20/x
  3. Step 3: Cross multiply
    11,107.56x = 16,661.28 × 4,177.20
  4. Step 4: Simplify right side
    11,107.56x = 69,597,498.82
  5. Step 5: Solve for x
    x = 69,597,498.82/11,107.56
  6. Step 6: Final answer
    x = 6,265.78

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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.