Home / 12,481.02-18,721.47-3,715.95

Finding the Fourth Proportional to 12,481.02, 18,721.47 and 3,715.95

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Solution

The fourth proportional to 12,481.02, 18,721.47 and 3,715.95 is: 5,573.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481.02 : 18,721.47 = 3,715.95 : x
  2. Step 2: Convert to fraction form
    12,481.02/18,721.47 = 3,715.95/x
  3. Step 3: Cross multiply
    12,481.02x = 18,721.47 × 3,715.95
  4. Step 4: Simplify right side
    12,481.02x = 69,568,046.45
  5. Step 5: Solve for x
    x = 69,568,046.45/12,481.02
  6. Step 6: Final answer
    x = 5,573.91

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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.