Home / 13,649.13-20,504.48-8,106.10

Finding the Fourth Proportional to 13,649.13, 20,504.48 and 8,106.10

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Solution

The fourth proportional to 13,649.13, 20,504.48 and 8,106.10 is: 12,177.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,649.13 : 20,504.48 = 8,106.10 : x
  2. Step 2: Convert to fraction form
    13,649.13/20,504.48 = 8,106.10/x
  3. Step 3: Cross multiply
    13,649.13x = 20,504.48 × 8,106.10
  4. Step 4: Simplify right side
    13,649.13x = 166,211,273.54
  5. Step 5: Solve for x
    x = 166,211,273.54/13,649.13
  6. Step 6: Final answer
    x = 12,177.43

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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.