Home / 8,419.94-12,631.73-3,225.81

Finding the Fourth Proportional to 8,419.94, 12,631.73 and 3,225.81

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Solution

The fourth proportional to 8,419.94, 12,631.73 and 3,225.81 is: 4,839.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.94 : 12,631.73 = 3,225.81 : x
  2. Step 2: Convert to fraction form
    8,419.94/12,631.73 = 3,225.81/x
  3. Step 3: Cross multiply
    8,419.94x = 12,631.73 × 3,225.81
  4. Step 4: Simplify right side
    8,419.94x = 40,747,592.53
  5. Step 5: Solve for x
    x = 40,747,592.53/8,419.94
  6. Step 6: Final answer
    x = 4,839.42

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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.