Home / 18,581.24-27,876.72-10,782.56

Finding the Fourth Proportional to 18,581.24, 27,876.72 and 10,782.56

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Solution

The fourth proportional to 18,581.24, 27,876.72 and 10,782.56 is: 16,176.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,581.24 : 27,876.72 = 10,782.56 : x
  2. Step 2: Convert to fraction form
    18,581.24/27,876.72 = 10,782.56/x
  3. Step 3: Cross multiply
    18,581.24x = 27,876.72 × 10,782.56
  4. Step 4: Simplify right side
    18,581.24x = 300,582,406.00
  5. Step 5: Solve for x
    x = 300,582,406.00/18,581.24
  6. Step 6: Final answer
    x = 16,176.66

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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.