Home / 15,748.38-21,731.94-8,673.48

Finding the Fourth Proportional to 15,748.38, 21,731.94 and 8,673.48

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Solution

The fourth proportional to 15,748.38, 21,731.94 and 8,673.48 is: 11,968.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,748.38 : 21,731.94 = 8,673.48 : x
  2. Step 2: Convert to fraction form
    15,748.38/21,731.94 = 8,673.48/x
  3. Step 3: Cross multiply
    15,748.38x = 21,731.94 × 8,673.48
  4. Step 4: Simplify right side
    15,748.38x = 188,491,546.95
  5. Step 5: Solve for x
    x = 188,491,546.95/15,748.38
  6. Step 6: Final answer
    x = 11,968.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.