Home / 18,682.75-25,782.20-10,299.43

Finding the Fourth Proportional to 18,682.75, 25,782.20 and 10,299.43

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Solution

The fourth proportional to 18,682.75, 25,782.20 and 10,299.43 is: 14,213.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,682.75 : 25,782.20 = 10,299.43 : x
  2. Step 2: Convert to fraction form
    18,682.75/25,782.20 = 10,299.43/x
  3. Step 3: Cross multiply
    18,682.75x = 25,782.20 × 10,299.43
  4. Step 4: Simplify right side
    18,682.75x = 265,541,964.15
  5. Step 5: Solve for x
    x = 265,541,964.15/18,682.75
  6. Step 6: Final answer
    x = 14,213.22

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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.