Home / 12,425.28-18,634.20-3,658.08

Finding the Fourth Proportional to 12,425.28, 18,634.20 and 3,658.08

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Solution

The fourth proportional to 12,425.28, 18,634.20 and 3,658.08 is: 5,486.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,425.28 : 18,634.20 = 3,658.08 : x
  2. Step 2: Convert to fraction form
    12,425.28/18,634.20 = 3,658.08/x
  3. Step 3: Cross multiply
    12,425.28x = 18,634.20 × 3,658.08
  4. Step 4: Simplify right side
    12,425.28x = 68,165,394.34
  5. Step 5: Solve for x
    x = 68,165,394.34/12,425.28
  6. Step 6: Final answer
    x = 5,486.02

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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.