Home / 12,450.24-18,678.09-3,685.83

Finding the Fourth Proportional to 12,450.24, 18,678.09 and 3,685.83

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Solution

The fourth proportional to 12,450.24, 18,678.09 and 3,685.83 is: 5,529.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450.24 : 18,678.09 = 3,685.83 : x
  2. Step 2: Convert to fraction form
    12,450.24/18,678.09 = 3,685.83/x
  3. Step 3: Cross multiply
    12,450.24x = 18,678.09 × 3,685.83
  4. Step 4: Simplify right side
    12,450.24x = 68,844,264.46
  5. Step 5: Solve for x
    x = 68,844,264.46/12,450.24
  6. Step 6: Final answer
    x = 5,529.55

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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.