Home / 15,249.20-21,043.94-8,534.84

Finding the Fourth Proportional to 15,249.20, 21,043.94 and 8,534.84

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Solution

The fourth proportional to 15,249.20, 21,043.94 and 8,534.84 is: 11,778.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,249.20 : 21,043.94 = 8,534.84 : x
  2. Step 2: Convert to fraction form
    15,249.20/21,043.94 = 8,534.84/x
  3. Step 3: Cross multiply
    15,249.20x = 21,043.94 × 8,534.84
  4. Step 4: Simplify right side
    15,249.20x = 179,606,512.98
  5. Step 5: Solve for x
    x = 179,606,512.98/15,249.20
  6. Step 6: Final answer
    x = 11,778.10

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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.