Home / 13,609.68-20,372.10-10,481.58

Finding the Fourth Proportional to 13,609.68, 20,372.10 and 10,481.58

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Solution

The fourth proportional to 13,609.68, 20,372.10 and 10,481.58 is: 15,689.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609.68 : 20,372.10 = 10,481.58 : x
  2. Step 2: Convert to fraction form
    13,609.68/20,372.10 = 10,481.58/x
  3. Step 3: Cross multiply
    13,609.68x = 20,372.10 × 10,481.58
  4. Step 4: Simplify right side
    13,609.68x = 213,531,795.92
  5. Step 5: Solve for x
    x = 213,531,795.92/13,609.68
  6. Step 6: Final answer
    x = 15,689.70

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1.5x scale

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.