Home / 15,219.27-20,996.33-9,249.98

Finding the Fourth Proportional to 15,219.27, 20,996.33 and 9,249.98

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Solution

The fourth proportional to 15,219.27, 20,996.33 and 9,249.98 is: 12,761.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,219.27 : 20,996.33 = 9,249.98 : x
  2. Step 2: Convert to fraction form
    15,219.27/20,996.33 = 9,249.98/x
  3. Step 3: Cross multiply
    15,219.27x = 20,996.33 × 9,249.98
  4. Step 4: Simplify right side
    15,219.27x = 194,215,481.34
  5. Step 5: Solve for x
    x = 194,215,481.34/15,219.27
  6. Step 6: Final answer
    x = 12,761.16

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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.