Home / 18,234.05-27,339.75-7,127.69

Finding the Fourth Proportional to 18,234.05, 27,339.75 and 7,127.69

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Solution

The fourth proportional to 18,234.05, 27,339.75 and 7,127.69 is: 10,687.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,234.05 : 27,339.75 = 7,127.69 : x
  2. Step 2: Convert to fraction form
    18,234.05/27,339.75 = 7,127.69/x
  3. Step 3: Cross multiply
    18,234.05x = 27,339.75 × 7,127.69
  4. Step 4: Simplify right side
    18,234.05x = 194,869,125.98
  5. Step 5: Solve for x
    x = 194,869,125.98/18,234.05
  6. Step 6: Final answer
    x = 10,687.10

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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.