Home / 12,623.74-18,936.38-5,228.77

Finding the Fourth Proportional to 12,623.74, 18,936.38 and 5,228.77

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Solution

The fourth proportional to 12,623.74, 18,936.38 and 5,228.77 is: 7,843.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,623.74 : 18,936.38 = 5,228.77 : x
  2. Step 2: Convert to fraction form
    12,623.74/18,936.38 = 5,228.77/x
  3. Step 3: Cross multiply
    12,623.74x = 18,936.38 × 5,228.77
  4. Step 4: Simplify right side
    12,623.74x = 99,013,975.65
  5. Step 5: Solve for x
    x = 99,013,975.65/12,623.74
  6. Step 6: Final answer
    x = 7,843.47

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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.