Home / 12,603.73-18,905.93-3,838.64

Finding the Fourth Proportional to 12,603.73, 18,905.93 and 3,838.64

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Solution

The fourth proportional to 12,603.73, 18,905.93 and 3,838.64 is: 5,758.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603.73 : 18,905.93 = 3,838.64 : x
  2. Step 2: Convert to fraction form
    12,603.73/18,905.93 = 3,838.64/x
  3. Step 3: Cross multiply
    12,603.73x = 18,905.93 × 3,838.64
  4. Step 4: Simplify right side
    12,603.73x = 72,573,076.95
  5. Step 5: Solve for x
    x = 72,573,076.95/12,603.73
  6. Step 6: Final answer
    x = 5,758.07

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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.