Home / 18,299.40-27,448.38-12,736.68

Finding the Fourth Proportional to 18,299.40, 27,448.38 and 12,736.68

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Solution

The fourth proportional to 18,299.40, 27,448.38 and 12,736.68 is: 19,104.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,299.40 : 27,448.38 = 12,736.68 : x
  2. Step 2: Convert to fraction form
    18,299.40/27,448.38 = 12,736.68/x
  3. Step 3: Cross multiply
    18,299.40x = 27,448.38 × 12,736.68
  4. Step 4: Simplify right side
    18,299.40x = 349,601,232.58
  5. Step 5: Solve for x
    x = 349,601,232.58/18,299.40
  6. Step 6: Final answer
    x = 19,104.52

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1.5x scale

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.