Home / 11,991.54-17,988.83-4,095.56

Finding the Fourth Proportional to 11,991.54, 17,988.83 and 4,095.56

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Solution

The fourth proportional to 11,991.54, 17,988.83 and 4,095.56 is: 6,143.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,991.54 : 17,988.83 = 4,095.56 : x
  2. Step 2: Convert to fraction form
    11,991.54/17,988.83 = 4,095.56/x
  3. Step 3: Cross multiply
    11,991.54x = 17,988.83 × 4,095.56
  4. Step 4: Simplify right side
    11,991.54x = 73,674,222.17
  5. Step 5: Solve for x
    x = 73,674,222.17/11,991.54
  6. Step 6: Final answer
    x = 6,143.85

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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.