Home / 9,170.21-13,745.90-3,621.31

Finding the Fourth Proportional to 9,170.21, 13,745.90 and 3,621.31

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Solution

The fourth proportional to 9,170.21, 13,745.90 and 3,621.31 is: 5,428.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,170.21 : 13,745.90 = 3,621.31 : x
  2. Step 2: Convert to fraction form
    9,170.21/13,745.90 = 3,621.31/x
  3. Step 3: Cross multiply
    9,170.21x = 13,745.90 × 3,621.31
  4. Step 4: Simplify right side
    9,170.21x = 49,778,139.82
  5. Step 5: Solve for x
    x = 49,778,139.82/9,170.21
  6. Step 6: Final answer
    x = 5,428.24

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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.