Home / 12,425.18-18,631.34-3,658.96

Finding the Fourth Proportional to 12,425.18, 18,631.34 and 3,658.96

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Solution

The fourth proportional to 12,425.18, 18,631.34 and 3,658.96 is: 5,486.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,425.18 : 18,631.34 = 3,658.96 : x
  2. Step 2: Convert to fraction form
    12,425.18/18,631.34 = 3,658.96/x
  3. Step 3: Cross multiply
    12,425.18x = 18,631.34 × 3,658.96
  4. Step 4: Simplify right side
    12,425.18x = 68,171,327.81
  5. Step 5: Solve for x
    x = 68,171,327.81/12,425.18
  6. Step 6: Final answer
    x = 5,486.55

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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.