Home / 13,285.54-19,929.53-3,424.85

Finding the Fourth Proportional to 13,285.54, 19,929.53 and 3,424.85

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Solution

The fourth proportional to 13,285.54, 19,929.53 and 3,424.85 is: 5,137.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.54 : 19,929.53 = 3,424.85 : x
  2. Step 2: Convert to fraction form
    13,285.54/19,929.53 = 3,424.85/x
  3. Step 3: Cross multiply
    13,285.54x = 19,929.53 × 3,424.85
  4. Step 4: Simplify right side
    13,285.54x = 68,255,633.70
  5. Step 5: Solve for x
    x = 68,255,633.70/13,285.54
  6. Step 6: Final answer
    x = 5,137.59

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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.