Home / 18,310.16-27,470.40-5,162.64

Finding the Fourth Proportional to 18,310.16, 27,470.40 and 5,162.64

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Solution

The fourth proportional to 18,310.16, 27,470.40 and 5,162.64 is: 7,745.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,310.16 : 27,470.40 = 5,162.64 : x
  2. Step 2: Convert to fraction form
    18,310.16/27,470.40 = 5,162.64/x
  3. Step 3: Cross multiply
    18,310.16x = 27,470.40 × 5,162.64
  4. Step 4: Simplify right side
    18,310.16x = 141,819,785.86
  5. Step 5: Solve for x
    x = 141,819,785.86/18,310.16
  6. Step 6: Final answer
    x = 7,745.41

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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.