Home / 9,166.20-13,743.90-3,320.20

Finding the Fourth Proportional to 9,166.20, 13,743.90 and 3,320.20

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Solution

The fourth proportional to 9,166.20, 13,743.90 and 3,320.20 is: 4,978.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,166.20 : 13,743.90 = 3,320.20 : x
  2. Step 2: Convert to fraction form
    9,166.20/13,743.90 = 3,320.20/x
  3. Step 3: Cross multiply
    9,166.20x = 13,743.90 × 3,320.20
  4. Step 4: Simplify right side
    9,166.20x = 45,632,496.78
  5. Step 5: Solve for x
    x = 45,632,496.78/9,166.20
  6. Step 6: Final answer
    x = 4,978.34

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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.