Home / 12,206.04-18,310.30-3,321.50

Finding the Fourth Proportional to 12,206.04, 18,310.30 and 3,321.50

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Solution

The fourth proportional to 12,206.04, 18,310.30 and 3,321.50 is: 4,982.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,206.04 : 18,310.30 = 3,321.50 : x
  2. Step 2: Convert to fraction form
    12,206.04/18,310.30 = 3,321.50/x
  3. Step 3: Cross multiply
    12,206.04x = 18,310.30 × 3,321.50
  4. Step 4: Simplify right side
    12,206.04x = 60,817,661.45
  5. Step 5: Solve for x
    x = 60,817,661.45/12,206.04
  6. Step 6: Final answer
    x = 4,982.59

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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.