Home / 18,018.32-27,030.05-5,539.38

Finding the Fourth Proportional to 18,018.32, 27,030.05 and 5,539.38

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Solution

The fourth proportional to 18,018.32, 27,030.05 and 5,539.38 is: 8,309.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,018.32 : 27,030.05 = 5,539.38 : x
  2. Step 2: Convert to fraction form
    18,018.32/27,030.05 = 5,539.38/x
  3. Step 3: Cross multiply
    18,018.32x = 27,030.05 × 5,539.38
  4. Step 4: Simplify right side
    18,018.32x = 149,729,843.97
  5. Step 5: Solve for x
    x = 149,729,843.97/18,018.32
  6. Step 6: Final answer
    x = 8,309.87

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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.