Home / 12,206.90-18,310.44-8,073.02

Finding the Fourth Proportional to 12,206.90, 18,310.44 and 8,073.02

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Solution

The fourth proportional to 12,206.90, 18,310.44 and 8,073.02 is: 12,109.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,206.90 : 18,310.44 = 8,073.02 : x
  2. Step 2: Convert to fraction form
    12,206.90/18,310.44 = 8,073.02/x
  3. Step 3: Cross multiply
    12,206.90x = 18,310.44 × 8,073.02
  4. Step 4: Simplify right side
    12,206.90x = 147,820,548.33
  5. Step 5: Solve for x
    x = 147,820,548.33/12,206.90
  6. Step 6: Final answer
    x = 12,109.59

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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.