Home / 11,990.40-17,996.68-6,071.45

Finding the Fourth Proportional to 11,990.40, 17,996.68 and 6,071.45

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Solution

The fourth proportional to 11,990.40, 17,996.68 and 6,071.45 is: 9,112.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.40 : 17,996.68 = 6,071.45 : x
  2. Step 2: Convert to fraction form
    11,990.40/17,996.68 = 6,071.45/x
  3. Step 3: Cross multiply
    11,990.40x = 17,996.68 × 6,071.45
  4. Step 4: Simplify right side
    11,990.40x = 109,265,942.79
  5. Step 5: Solve for x
    x = 109,265,942.79/11,990.40
  6. Step 6: Final answer
    x = 9,112.79

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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.