Home / 14,503.42-20,016.13-8,131.09

Finding the Fourth Proportional to 14,503.42, 20,016.13 and 8,131.09

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Solution

The fourth proportional to 14,503.42, 20,016.13 and 8,131.09 is: 11,221.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,503.42 : 20,016.13 = 8,131.09 : x
  2. Step 2: Convert to fraction form
    14,503.42/20,016.13 = 8,131.09/x
  3. Step 3: Cross multiply
    14,503.42x = 20,016.13 × 8,131.09
  4. Step 4: Simplify right side
    14,503.42x = 162,752,954.48
  5. Step 5: Solve for x
    x = 162,752,954.48/14,503.42
  6. Step 6: Final answer
    x = 11,221.69

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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.