Home / 11,436.72-17,155.08-3,228.72

Finding the Fourth Proportional to 11,436.72, 17,155.08 and 3,228.72

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Solution

The fourth proportional to 11,436.72, 17,155.08 and 3,228.72 is: 4,843.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,436.72 : 17,155.08 = 3,228.72 : x
  2. Step 2: Convert to fraction form
    11,436.72/17,155.08 = 3,228.72/x
  3. Step 3: Cross multiply
    11,436.72x = 17,155.08 × 3,228.72
  4. Step 4: Simplify right side
    11,436.72x = 55,388,949.90
  5. Step 5: Solve for x
    x = 55,388,949.90/11,436.72
  6. Step 6: Final answer
    x = 4,843.08

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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.