Home / 18,628.76-27,940.75-6,145.69

Finding the Fourth Proportional to 18,628.76, 27,940.75 and 6,145.69

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Solution

The fourth proportional to 18,628.76, 27,940.75 and 6,145.69 is: 9,217.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,628.76 : 27,940.75 = 6,145.69 : x
  2. Step 2: Convert to fraction form
    18,628.76/27,940.75 = 6,145.69/x
  3. Step 3: Cross multiply
    18,628.76x = 27,940.75 × 6,145.69
  4. Step 4: Simplify right side
    18,628.76x = 171,715,187.87
  5. Step 5: Solve for x
    x = 171,715,187.87/18,628.76
  6. Step 6: Final answer
    x = 9,217.75

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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.