Home / 13,803.06-20,729.12-11,308.97

Finding the Fourth Proportional to 13,803.06, 20,729.12 and 11,308.97

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Solution

The fourth proportional to 13,803.06, 20,729.12 and 11,308.97 is: 16,983.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,803.06 : 20,729.12 = 11,308.97 : x
  2. Step 2: Convert to fraction form
    13,803.06/20,729.12 = 11,308.97/x
  3. Step 3: Cross multiply
    13,803.06x = 20,729.12 × 11,308.97
  4. Step 4: Simplify right side
    13,803.06x = 234,424,874.88
  5. Step 5: Solve for x
    x = 234,424,874.88/13,803.06
  6. Step 6: Final answer
    x = 16,983.55

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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.