Home / 12,239.64-18,351.36-4,448.52

Finding the Fourth Proportional to 12,239.64, 18,351.36 and 4,448.52

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Solution

The fourth proportional to 12,239.64, 18,351.36 and 4,448.52 is: 6,669.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,239.64 : 18,351.36 = 4,448.52 : x
  2. Step 2: Convert to fraction form
    12,239.64/18,351.36 = 4,448.52/x
  3. Step 3: Cross multiply
    12,239.64x = 18,351.36 × 4,448.52
  4. Step 4: Simplify right side
    12,239.64x = 81,636,391.99
  5. Step 5: Solve for x
    x = 81,636,391.99/12,239.64
  6. Step 6: Final answer
    x = 6,669.84

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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.