Home / 18,490.17-27,729.78-5,342.66

Finding the Fourth Proportional to 18,490.17, 27,729.78 and 5,342.66

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Solution

The fourth proportional to 18,490.17, 27,729.78 and 5,342.66 is: 8,012.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,490.17 : 27,729.78 = 5,342.66 : x
  2. Step 2: Convert to fraction form
    18,490.17/27,729.78 = 5,342.66/x
  3. Step 3: Cross multiply
    18,490.17x = 27,729.78 × 5,342.66
  4. Step 4: Simplify right side
    18,490.17x = 148,150,786.41
  5. Step 5: Solve for x
    x = 148,150,786.41/18,490.17
  6. Step 6: Final answer
    x = 8,012.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.