Home / 18,500.20-27,732.38-6,810.28

Finding the Fourth Proportional to 18,500.20, 27,732.38 and 6,810.28

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Solution

The fourth proportional to 18,500.20, 27,732.38 and 6,810.28 is: 10,208.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,500.20 : 27,732.38 = 6,810.28 : x
  2. Step 2: Convert to fraction form
    18,500.20/27,732.38 = 6,810.28/x
  3. Step 3: Cross multiply
    18,500.20x = 27,732.38 × 6,810.28
  4. Step 4: Simplify right side
    18,500.20x = 188,865,272.87
  5. Step 5: Solve for x
    x = 188,865,272.87/18,500.20
  6. Step 6: Final answer
    x = 10,208.82

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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.