Home / 15,213.35-20,994.42-8,498.98

Finding the Fourth Proportional to 15,213.35, 20,994.42 and 8,498.98

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Solution

The fourth proportional to 15,213.35, 20,994.42 and 8,498.98 is: 11,728.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,213.35 : 20,994.42 = 8,498.98 : x
  2. Step 2: Convert to fraction form
    15,213.35/20,994.42 = 8,498.98/x
  3. Step 3: Cross multiply
    15,213.35x = 20,994.42 × 8,498.98
  4. Step 4: Simplify right side
    15,213.35x = 178,431,103.21
  5. Step 5: Solve for x
    x = 178,431,103.21/15,213.35
  6. Step 6: Final answer
    x = 11,728.59

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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.