Home / 11,990.72-17,997.15-6,071.76

Finding the Fourth Proportional to 11,990.72, 17,997.15 and 6,071.76

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Solution

The fourth proportional to 11,990.72, 17,997.15 and 6,071.76 is: 9,113.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.72 : 17,997.15 = 6,071.76 : x
  2. Step 2: Convert to fraction form
    11,990.72/17,997.15 = 6,071.76/x
  3. Step 3: Cross multiply
    11,990.72x = 17,997.15 × 6,071.76
  4. Step 4: Simplify right side
    11,990.72x = 109,274,375.48
  5. Step 5: Solve for x
    x = 109,274,375.48/11,990.72
  6. Step 6: Final answer
    x = 9,113.25

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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.