Home / 13,649.30-20,471.66-3,789.58

Finding the Fourth Proportional to 13,649.30, 20,471.66 and 3,789.58

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Solution

The fourth proportional to 13,649.30, 20,471.66 and 3,789.58 is: 5,683.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,649.30 : 20,471.66 = 3,789.58 : x
  2. Step 2: Convert to fraction form
    13,649.30/20,471.66 = 3,789.58/x
  3. Step 3: Cross multiply
    13,649.30x = 20,471.66 × 3,789.58
  4. Step 4: Simplify right side
    13,649.30x = 77,578,993.30
  5. Step 5: Solve for x
    x = 77,578,993.30/13,649.30
  6. Step 6: Final answer
    x = 5,683.73

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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.