Home / 11,971.62-17,937.63-6,120.18

Finding the Fourth Proportional to 11,971.62, 17,937.63 and 6,120.18

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Solution

The fourth proportional to 11,971.62, 17,937.63 and 6,120.18 is: 9,170.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,971.62 : 17,937.63 = 6,120.18 : x
  2. Step 2: Convert to fraction form
    11,971.62/17,937.63 = 6,120.18/x
  3. Step 3: Cross multiply
    11,971.62x = 17,937.63 × 6,120.18
  4. Step 4: Simplify right side
    11,971.62x = 109,781,524.37
  5. Step 5: Solve for x
    x = 109,781,524.37/11,971.62
  6. Step 6: Final answer
    x = 9,170.15

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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.