Home / 18,442.29-27,665.01-7,912.77

Finding the Fourth Proportional to 18,442.29, 27,665.01 and 7,912.77

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Solution

The fourth proportional to 18,442.29, 27,665.01 and 7,912.77 is: 11,869.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,442.29 : 27,665.01 = 7,912.77 : x
  2. Step 2: Convert to fraction form
    18,442.29/27,665.01 = 7,912.77/x
  3. Step 3: Cross multiply
    18,442.29x = 27,665.01 × 7,912.77
  4. Step 4: Simplify right side
    18,442.29x = 218,906,861.18
  5. Step 5: Solve for x
    x = 218,906,861.18/18,442.29
  6. Step 6: Final answer
    x = 11,869.83

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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.