Home / 12,736.20-17,571.12-9,387

Finding the Fourth Proportional to 12,736.20, 17,571.12 and 9,387

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Solution

The fourth proportional to 12,736.20, 17,571.12 and 9,387 is: 12,950.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,736.20 : 17,571.12 = 9,387 : x
  2. Step 2: Convert to fraction form
    12,736.20/17,571.12 = 9,387/x
  3. Step 3: Cross multiply
    12,736.20x = 17,571.12 × 9,387
  4. Step 4: Simplify right side
    12,736.20x = 164,940,103.44
  5. Step 5: Solve for x
    x = 164,940,103.44/12,736.20
  6. Step 6: Final answer
    x = 12,950.50

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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.