Home / 12,236.36-18,355.76-3,914.29

Finding the Fourth Proportional to 12,236.36, 18,355.76 and 3,914.29

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Solution

The fourth proportional to 12,236.36, 18,355.76 and 3,914.29 is: 5,871.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,236.36 : 18,355.76 = 3,914.29 : x
  2. Step 2: Convert to fraction form
    12,236.36/18,355.76 = 3,914.29/x
  3. Step 3: Cross multiply
    12,236.36x = 18,355.76 × 3,914.29
  4. Step 4: Simplify right side
    12,236.36x = 71,849,767.81
  5. Step 5: Solve for x
    x = 71,849,767.81/12,236.36
  6. Step 6: Final answer
    x = 5,871.83

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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.