Home / 14,884.98-20,540.94-8,170.56

Finding the Fourth Proportional to 14,884.98, 20,540.94 and 8,170.56

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Solution

The fourth proportional to 14,884.98, 20,540.94 and 8,170.56 is: 11,275.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,884.98 : 20,540.94 = 8,170.56 : x
  2. Step 2: Convert to fraction form
    14,884.98/20,540.94 = 8,170.56/x
  3. Step 3: Cross multiply
    14,884.98x = 20,540.94 × 8,170.56
  4. Step 4: Simplify right side
    14,884.98x = 167,830,982.73
  5. Step 5: Solve for x
    x = 167,830,982.73/14,884.98
  6. Step 6: Final answer
    x = 11,275.19

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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.