Home / 13,530.34-20,296.61-4,170.36

Finding the Fourth Proportional to 13,530.34, 20,296.61 and 4,170.36

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Solution

The fourth proportional to 13,530.34, 20,296.61 and 4,170.36 is: 6,255.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,530.34 : 20,296.61 = 4,170.36 : x
  2. Step 2: Convert to fraction form
    13,530.34/20,296.61 = 4,170.36/x
  3. Step 3: Cross multiply
    13,530.34x = 20,296.61 × 4,170.36
  4. Step 4: Simplify right side
    13,530.34x = 84,644,149.63
  5. Step 5: Solve for x
    x = 84,644,149.63/13,530.34
  6. Step 6: Final answer
    x = 6,255.88

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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.