Home / 18,440.36-27,664.11-7,908.91

Finding the Fourth Proportional to 18,440.36, 27,664.11 and 7,908.91

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Solution

The fourth proportional to 18,440.36, 27,664.11 and 7,908.91 is: 11,864.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,440.36 : 27,664.11 = 7,908.91 : x
  2. Step 2: Convert to fraction form
    18,440.36/27,664.11 = 7,908.91/x
  3. Step 3: Cross multiply
    18,440.36x = 27,664.11 × 7,908.91
  4. Step 4: Simplify right side
    18,440.36x = 218,792,956.22
  5. Step 5: Solve for x
    x = 218,792,956.22/18,440.36
  6. Step 6: Final answer
    x = 11,864.90

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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.