Home / 10,619.39-15,929.69-3,224.09

Finding the Fourth Proportional to 10,619.39, 15,929.69 and 3,224.09

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Solution

The fourth proportional to 10,619.39, 15,929.69 and 3,224.09 is: 4,836.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,619.39 : 15,929.69 = 3,224.09 : x
  2. Step 2: Convert to fraction form
    10,619.39/15,929.69 = 3,224.09/x
  3. Step 3: Cross multiply
    10,619.39x = 15,929.69 × 3,224.09
  4. Step 4: Simplify right side
    10,619.39x = 51,358,658.46
  5. Step 5: Solve for x
    x = 51,358,658.46/10,619.39
  6. Step 6: Final answer
    x = 4,836.31

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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.