Home / 12,236.00-18,355.20-3,913.92

Finding the Fourth Proportional to 12,236.00, 18,355.20 and 3,913.92

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Solution

The fourth proportional to 12,236.00, 18,355.20 and 3,913.92 is: 5,871.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,236.00 : 18,355.20 = 3,913.92 : x
  2. Step 2: Convert to fraction form
    12,236.00/18,355.20 = 3,913.92/x
  3. Step 3: Cross multiply
    12,236.00x = 18,355.20 × 3,913.92
  4. Step 4: Simplify right side
    12,236.00x = 71,840,784.38
  5. Step 5: Solve for x
    x = 71,840,784.38/12,236.00
  6. Step 6: Final answer
    x = 5,871.27

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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.