Home / 18,378.05-27,568.11-5,229.38

Finding the Fourth Proportional to 18,378.05, 27,568.11 and 5,229.38

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Solution

The fourth proportional to 18,378.05, 27,568.11 and 5,229.38 is: 7,844.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378.05 : 27,568.11 = 5,229.38 : x
  2. Step 2: Convert to fraction form
    18,378.05/27,568.11 = 5,229.38/x
  3. Step 3: Cross multiply
    18,378.05x = 27,568.11 × 5,229.38
  4. Step 4: Simplify right side
    18,378.05x = 144,163,985.23
  5. Step 5: Solve for x
    x = 144,163,985.23/18,378.05
  6. Step 6: Final answer
    x = 7,844.36

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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.