Home / 12,211.10-18,320.09-3,446.09

Finding the Fourth Proportional to 12,211.10, 18,320.09 and 3,446.09

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Solution

The fourth proportional to 12,211.10, 18,320.09 and 3,446.09 is: 5,170.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,211.10 : 18,320.09 = 3,446.09 : x
  2. Step 2: Convert to fraction form
    12,211.10/18,320.09 = 3,446.09/x
  3. Step 3: Cross multiply
    12,211.10x = 18,320.09 × 3,446.09
  4. Step 4: Simplify right side
    12,211.10x = 63,132,661.72
  5. Step 5: Solve for x
    x = 63,132,661.72/12,211.10
  6. Step 6: Final answer
    x = 5,170.10

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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.