Home / 12,212.84-18,320.00-3,448.41

Finding the Fourth Proportional to 12,212.84, 18,320.00 and 3,448.41

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Solution

The fourth proportional to 12,212.84, 18,320.00 and 3,448.41 is: 5,172.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,212.84 : 18,320.00 = 3,448.41 : x
  2. Step 2: Convert to fraction form
    12,212.84/18,320.00 = 3,448.41/x
  3. Step 3: Cross multiply
    12,212.84x = 18,320.00 × 3,448.41
  4. Step 4: Simplify right side
    12,212.84x = 63,174,853.96
  5. Step 5: Solve for x
    x = 63,174,853.96/12,212.84
  6. Step 6: Final answer
    x = 5,172.82

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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.