Home / 14,504.51-20,015.97-8,131.30

Finding the Fourth Proportional to 14,504.51, 20,015.97 and 8,131.30

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Solution

The fourth proportional to 14,504.51, 20,015.97 and 8,131.30 is: 11,221.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,504.51 : 20,015.97 = 8,131.30 : x
  2. Step 2: Convert to fraction form
    14,504.51/20,015.97 = 8,131.30/x
  3. Step 3: Cross multiply
    14,504.51x = 20,015.97 × 8,131.30
  4. Step 4: Simplify right side
    14,504.51x = 162,755,856.86
  5. Step 5: Solve for x
    x = 162,755,856.86/14,504.51
  6. Step 6: Final answer
    x = 11,221.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.