Home / 13,609.73-20,422.37-5,288.67

Finding the Fourth Proportional to 13,609.73, 20,422.37 and 5,288.67

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Solution

The fourth proportional to 13,609.73, 20,422.37 and 5,288.67 is: 7,936.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609.73 : 20,422.37 = 5,288.67 : x
  2. Step 2: Convert to fraction form
    13,609.73/20,422.37 = 5,288.67/x
  3. Step 3: Cross multiply
    13,609.73x = 20,422.37 × 5,288.67
  4. Step 4: Simplify right side
    13,609.73x = 108,007,175.55
  5. Step 5: Solve for x
    x = 108,007,175.55/13,609.73
  6. Step 6: Final answer
    x = 7,936.03

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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.