Home / 12,283.53-18,428.90-3,963.39

Finding the Fourth Proportional to 12,283.53, 18,428.90 and 3,963.39

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Solution

The fourth proportional to 12,283.53, 18,428.90 and 3,963.39 is: 5,946.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,283.53 : 18,428.90 = 3,963.39 : x
  2. Step 2: Convert to fraction form
    12,283.53/18,428.90 = 3,963.39/x
  3. Step 3: Cross multiply
    12,283.53x = 18,428.90 × 3,963.39
  4. Step 4: Simplify right side
    12,283.53x = 73,040,835.73
  5. Step 5: Solve for x
    x = 73,040,835.73/12,283.53
  6. Step 6: Final answer
    x = 5,946.24

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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.