Home / 13,682.24-18,960.82-13,419.76

Finding the Fourth Proportional to 13,682.24, 18,960.82 and 13,419.76

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Solution

The fourth proportional to 13,682.24, 18,960.82 and 13,419.76 is: 18,597.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,682.24 : 18,960.82 = 13,419.76 : x
  2. Step 2: Convert to fraction form
    13,682.24/18,960.82 = 13,419.76/x
  3. Step 3: Cross multiply
    13,682.24x = 18,960.82 × 13,419.76
  4. Step 4: Simplify right side
    13,682.24x = 254,449,653.80
  5. Step 5: Solve for x
    x = 254,449,653.80/13,682.24
  6. Step 6: Final answer
    x = 18,597.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.