Home / 18,213.09-27,315.09-12,932.70

Finding the Fourth Proportional to 18,213.09, 27,315.09 and 12,932.70

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Solution

The fourth proportional to 18,213.09, 27,315.09 and 12,932.70 is: 19,395.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,213.09 : 27,315.09 = 12,932.70 : x
  2. Step 2: Convert to fraction form
    18,213.09/27,315.09 = 12,932.70/x
  3. Step 3: Cross multiply
    18,213.09x = 27,315.09 × 12,932.70
  4. Step 4: Simplify right side
    18,213.09x = 353,257,864.44
  5. Step 5: Solve for x
    x = 353,257,864.44/18,213.09
  6. Step 6: Final answer
    x = 19,395.82

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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.