Home / 18,122.72-25,010.62-10,056.79

Finding the Fourth Proportional to 18,122.72, 25,010.62 and 10,056.79

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Solution

The fourth proportional to 18,122.72, 25,010.62 and 10,056.79 is: 13,879.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122.72 : 25,010.62 = 10,056.79 : x
  2. Step 2: Convert to fraction form
    18,122.72/25,010.62 = 10,056.79/x
  3. Step 3: Cross multiply
    18,122.72x = 25,010.62 × 10,056.79
  4. Step 4: Simplify right side
    18,122.72x = 251,526,553.11
  5. Step 5: Solve for x
    x = 251,526,553.11/18,122.72
  6. Step 6: Final answer
    x = 13,879.07

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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.