Home / 9,147.33-13,720.68-3,878.95

Finding the Fourth Proportional to 9,147.33, 13,720.68 and 3,878.95

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Solution

The fourth proportional to 9,147.33, 13,720.68 and 3,878.95 is: 5,818.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,147.33 : 13,720.68 = 3,878.95 : x
  2. Step 2: Convert to fraction form
    9,147.33/13,720.68 = 3,878.95/x
  3. Step 3: Cross multiply
    9,147.33x = 13,720.68 × 3,878.95
  4. Step 4: Simplify right side
    9,147.33x = 53,221,743.69
  5. Step 5: Solve for x
    x = 53,221,743.69/9,147.33
  6. Step 6: Final answer
    x = 5,818.28

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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.