Home / 18,378.21-25,361.17-10,824.85

Finding the Fourth Proportional to 18,378.21, 25,361.17 and 10,824.85

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Solution

The fourth proportional to 18,378.21, 25,361.17 and 10,824.85 is: 14,937.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378.21 : 25,361.17 = 10,824.85 : x
  2. Step 2: Convert to fraction form
    18,378.21/25,361.17 = 10,824.85/x
  3. Step 3: Cross multiply
    18,378.21x = 25,361.17 × 10,824.85
  4. Step 4: Simplify right side
    18,378.21x = 274,530,861.07
  5. Step 5: Solve for x
    x = 274,530,861.07/18,378.21
  6. Step 6: Final answer
    x = 14,937.85

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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.