Home / 17,137.20-25,707.80-5,451.60

Finding the Fourth Proportional to 17,137.20, 25,707.80 and 5,451.60

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Solution

The fourth proportional to 17,137.20, 25,707.80 and 5,451.60 is: 8,178.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,137.20 : 25,707.80 = 5,451.60 : x
  2. Step 2: Convert to fraction form
    17,137.20/25,707.80 = 5,451.60/x
  3. Step 3: Cross multiply
    17,137.20x = 25,707.80 × 5,451.60
  4. Step 4: Simplify right side
    17,137.20x = 140,148,642.48
  5. Step 5: Solve for x
    x = 140,148,642.48/17,137.20
  6. Step 6: Final answer
    x = 8,178.04

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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.