Home / 13,418.55-20,125.53-3,557.97

Finding the Fourth Proportional to 13,418.55, 20,125.53 and 3,557.97

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Solution

The fourth proportional to 13,418.55, 20,125.53 and 3,557.97 is: 5,336.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,418.55 : 20,125.53 = 3,557.97 : x
  2. Step 2: Convert to fraction form
    13,418.55/20,125.53 = 3,557.97/x
  3. Step 3: Cross multiply
    13,418.55x = 20,125.53 × 3,557.97
  4. Step 4: Simplify right side
    13,418.55x = 71,606,031.97
  5. Step 5: Solve for x
    x = 71,606,031.97/13,418.55
  6. Step 6: Final answer
    x = 5,336.35

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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.