Home / 18,510.80-27,722.06-11,826.27

Finding the Fourth Proportional to 18,510.80, 27,722.06 and 11,826.27

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Solution

The fourth proportional to 18,510.80, 27,722.06 and 11,826.27 is: 17,711.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,510.80 : 27,722.06 = 11,826.27 : x
  2. Step 2: Convert to fraction form
    18,510.80/27,722.06 = 11,826.27/x
  3. Step 3: Cross multiply
    18,510.80x = 27,722.06 × 11,826.27
  4. Step 4: Simplify right side
    18,510.80x = 327,848,534.92
  5. Step 5: Solve for x
    x = 327,848,534.92/18,510.80
  6. Step 6: Final answer
    x = 17,711.20

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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.