Home / 18,261.18-27,395.82-5,785.02

Finding the Fourth Proportional to 18,261.18, 27,395.82 and 5,785.02

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Solution

The fourth proportional to 18,261.18, 27,395.82 and 5,785.02 is: 8,678.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,261.18 : 27,395.82 = 5,785.02 : x
  2. Step 2: Convert to fraction form
    18,261.18/27,395.82 = 5,785.02/x
  3. Step 3: Cross multiply
    18,261.18x = 27,395.82 × 5,785.02
  4. Step 4: Simplify right side
    18,261.18x = 158,485,366.62
  5. Step 5: Solve for x
    x = 158,485,366.62/18,261.18
  6. Step 6: Final answer
    x = 8,678.81

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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.