Home / 9,130.21-13,689.14-3,580.09

Finding the Fourth Proportional to 9,130.21, 13,689.14 and 3,580.09

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Solution

The fourth proportional to 9,130.21, 13,689.14 and 3,580.09 is: 5,367.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,130.21 : 13,689.14 = 3,580.09 : x
  2. Step 2: Convert to fraction form
    9,130.21/13,689.14 = 3,580.09/x
  3. Step 3: Cross multiply
    9,130.21x = 13,689.14 × 3,580.09
  4. Step 4: Simplify right side
    9,130.21x = 49,008,335.32
  5. Step 5: Solve for x
    x = 49,008,335.32/9,130.21
  6. Step 6: Final answer
    x = 5,367.71

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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.