Home / 15,540.99-21,446.58-8,467.43

Finding the Fourth Proportional to 15,540.99, 21,446.58 and 8,467.43

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Solution

The fourth proportional to 15,540.99, 21,446.58 and 8,467.43 is: 11,685.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,540.99 : 21,446.58 = 8,467.43 : x
  2. Step 2: Convert to fraction form
    15,540.99/21,446.58 = 8,467.43/x
  3. Step 3: Cross multiply
    15,540.99x = 21,446.58 × 8,467.43
  4. Step 4: Simplify right side
    15,540.99x = 181,597,414.89
  5. Step 5: Solve for x
    x = 181,597,414.89/15,540.99
  6. Step 6: Final answer
    x = 11,685.06

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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.