Home / 13,375.27-20,065.35-4,489.69

Finding the Fourth Proportional to 13,375.27, 20,065.35 and 4,489.69

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Solution

The fourth proportional to 13,375.27, 20,065.35 and 4,489.69 is: 6,735.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,375.27 : 20,065.35 = 4,489.69 : x
  2. Step 2: Convert to fraction form
    13,375.27/20,065.35 = 4,489.69/x
  3. Step 3: Cross multiply
    13,375.27x = 20,065.35 × 4,489.69
  4. Step 4: Simplify right side
    13,375.27x = 90,087,201.24
  5. Step 5: Solve for x
    x = 90,087,201.24/13,375.27
  6. Step 6: Final answer
    x = 6,735.36

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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.