Home / 9,147.22-13,721.74-4,218.27

Finding the Fourth Proportional to 9,147.22, 13,721.74 and 4,218.27

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Solution

The fourth proportional to 9,147.22, 13,721.74 and 4,218.27 is: 6,327.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,147.22 : 13,721.74 = 4,218.27 : x
  2. Step 2: Convert to fraction form
    9,147.22/13,721.74 = 4,218.27/x
  3. Step 3: Cross multiply
    9,147.22x = 13,721.74 × 4,218.27
  4. Step 4: Simplify right side
    9,147.22x = 57,882,004.19
  5. Step 5: Solve for x
    x = 57,882,004.19/9,147.22
  6. Step 6: Final answer
    x = 6,327.82

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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.