Home / 18,512.31-27,733.59-9,141.36

Finding the Fourth Proportional to 18,512.31, 27,733.59 and 9,141.36

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Solution

The fourth proportional to 18,512.31, 27,733.59 and 9,141.36 is: 13,694.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,512.31 : 27,733.59 = 9,141.36 : x
  2. Step 2: Convert to fraction form
    18,512.31/27,733.59 = 9,141.36/x
  3. Step 3: Cross multiply
    18,512.31x = 27,733.59 × 9,141.36
  4. Step 4: Simplify right side
    18,512.31x = 253,522,626.28
  5. Step 5: Solve for x
    x = 253,522,626.28/18,512.31
  6. Step 6: Final answer
    x = 13,694.81

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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.