Home / 11,638.20-17,454.69-3,318.06

Finding the Fourth Proportional to 11,638.20, 17,454.69 and 3,318.06

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Solution

The fourth proportional to 11,638.20, 17,454.69 and 3,318.06 is: 4,976.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,638.20 : 17,454.69 = 3,318.06 : x
  2. Step 2: Convert to fraction form
    11,638.20/17,454.69 = 3,318.06/x
  3. Step 3: Cross multiply
    11,638.20x = 17,454.69 × 3,318.06
  4. Step 4: Simplify right side
    11,638.20x = 57,915,708.70
  5. Step 5: Solve for x
    x = 57,915,708.70/11,638.20
  6. Step 6: Final answer
    x = 4,976.35

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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.