Home / 12,211.35-18,320.46-3,446.34

Finding the Fourth Proportional to 12,211.35, 18,320.46 and 3,446.34

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Solution

The fourth proportional to 12,211.35, 18,320.46 and 3,446.34 is: 5,170.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,211.35 : 18,320.46 = 3,446.34 : x
  2. Step 2: Convert to fraction form
    12,211.35/18,320.46 = 3,446.34/x
  3. Step 3: Cross multiply
    12,211.35x = 18,320.46 × 3,446.34
  4. Step 4: Simplify right side
    12,211.35x = 63,138,534.12
  5. Step 5: Solve for x
    x = 63,138,534.12/12,211.35
  6. Step 6: Final answer
    x = 5,170.48

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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.