Home / 9,255.45-13,889.37-3,412.05

Finding the Fourth Proportional to 9,255.45, 13,889.37 and 3,412.05

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Solution

The fourth proportional to 9,255.45, 13,889.37 and 3,412.05 is: 5,120.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,255.45 : 13,889.37 = 3,412.05 : x
  2. Step 2: Convert to fraction form
    9,255.45/13,889.37 = 3,412.05/x
  3. Step 3: Cross multiply
    9,255.45x = 13,889.37 × 3,412.05
  4. Step 4: Simplify right side
    9,255.45x = 47,391,224.91
  5. Step 5: Solve for x
    x = 47,391,224.91/9,255.45
  6. Step 6: Final answer
    x = 5,120.36

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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.