Home / 12,207.13-18,321.23-5,971.75

Finding the Fourth Proportional to 12,207.13, 18,321.23 and 5,971.75

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Solution

The fourth proportional to 12,207.13, 18,321.23 and 5,971.75 is: 8,962.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207.13 : 18,321.23 = 5,971.75 : x
  2. Step 2: Convert to fraction form
    12,207.13/18,321.23 = 5,971.75/x
  3. Step 3: Cross multiply
    12,207.13x = 18,321.23 × 5,971.75
  4. Step 4: Simplify right side
    12,207.13x = 109,409,805.25
  5. Step 5: Solve for x
    x = 109,409,805.25/12,207.13
  6. Step 6: Final answer
    x = 8,962.78

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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.