Home / 9,164.88-13,747.36-3,319.20

Finding the Fourth Proportional to 9,164.88, 13,747.36 and 3,319.20

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Solution

The fourth proportional to 9,164.88, 13,747.36 and 3,319.20 is: 4,978.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,164.88 : 13,747.36 = 3,319.20 : x
  2. Step 2: Convert to fraction form
    9,164.88/13,747.36 = 3,319.20/x
  3. Step 3: Cross multiply
    9,164.88x = 13,747.36 × 3,319.20
  4. Step 4: Simplify right side
    9,164.88x = 45,630,237.31
  5. Step 5: Solve for x
    x = 45,630,237.31/9,164.88
  6. Step 6: Final answer
    x = 4,978.81

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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.