Home / 11,972.12-17,958.16-3,206.80

Finding the Fourth Proportional to 11,972.12, 17,958.16 and 3,206.80

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Solution

The fourth proportional to 11,972.12, 17,958.16 and 3,206.80 is: 4,810.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972.12 : 17,958.16 = 3,206.80 : x
  2. Step 2: Convert to fraction form
    11,972.12/17,958.16 = 3,206.80/x
  3. Step 3: Cross multiply
    11,972.12x = 17,958.16 × 3,206.80
  4. Step 4: Simplify right side
    11,972.12x = 57,588,227.49
  5. Step 5: Solve for x
    x = 57,588,227.49/11,972.12
  6. Step 6: Final answer
    x = 4,810.19

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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.