Home / 11,990.72-17,977.44-7,364

Finding the Fourth Proportional to 11,990.72, 17,977.44 and 7,364

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Solution

The fourth proportional to 11,990.72, 17,977.44 and 7,364 is: 11,040.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.72 : 17,977.44 = 7,364 : x
  2. Step 2: Convert to fraction form
    11,990.72/17,977.44 = 7,364/x
  3. Step 3: Cross multiply
    11,990.72x = 17,977.44 × 7,364
  4. Step 4: Simplify right side
    11,990.72x = 132,385,868.16
  5. Step 5: Solve for x
    x = 132,385,868.16/11,990.72
  6. Step 6: Final answer
    x = 11,040.69

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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.