Home / 12,206.90-18,310.32-3,442.03

Finding the Fourth Proportional to 12,206.90, 18,310.32 and 3,442.03

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Solution

The fourth proportional to 12,206.90, 18,310.32 and 3,442.03 is: 5,163.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,206.90 : 18,310.32 = 3,442.03 : x
  2. Step 2: Convert to fraction form
    12,206.90/18,310.32 = 3,442.03/x
  3. Step 3: Cross multiply
    12,206.90x = 18,310.32 × 3,442.03
  4. Step 4: Simplify right side
    12,206.90x = 63,024,624.97
  5. Step 5: Solve for x
    x = 63,024,624.97/12,206.90
  6. Step 6: Final answer
    x = 5,163.03

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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.