Home / 13,543.52-20,299.68-5,219.37

Finding the Fourth Proportional to 13,543.52, 20,299.68 and 5,219.37

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Solution

The fourth proportional to 13,543.52, 20,299.68 and 5,219.37 is: 7,823.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,543.52 : 20,299.68 = 5,219.37 : x
  2. Step 2: Convert to fraction form
    13,543.52/20,299.68 = 5,219.37/x
  3. Step 3: Cross multiply
    13,543.52x = 20,299.68 × 5,219.37
  4. Step 4: Simplify right side
    13,543.52x = 105,951,540.80
  5. Step 5: Solve for x
    x = 105,951,540.80/13,543.52
  6. Step 6: Final answer
    x = 7,823.05

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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.