Home / 12,193.11-18,285.53-3,425.99

Finding the Fourth Proportional to 12,193.11, 18,285.53 and 3,425.99

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Solution

The fourth proportional to 12,193.11, 18,285.53 and 3,425.99 is: 5,137.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,193.11 : 18,285.53 = 3,425.99 : x
  2. Step 2: Convert to fraction form
    12,193.11/18,285.53 = 3,425.99/x
  3. Step 3: Cross multiply
    12,193.11x = 18,285.53 × 3,425.99
  4. Step 4: Simplify right side
    12,193.11x = 62,645,934.37
  5. Step 5: Solve for x
    x = 62,645,934.37/12,193.11
  6. Step 6: Final answer
    x = 5,137.81

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1.5x scale

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.