Home / 12,623.12-18,934.68-3,389.84

Finding the Fourth Proportional to 12,623.12, 18,934.68 and 3,389.84

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Solution

The fourth proportional to 12,623.12, 18,934.68 and 3,389.84 is: 5,084.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,623.12 : 18,934.68 = 3,389.84 : x
  2. Step 2: Convert to fraction form
    12,623.12/18,934.68 = 3,389.84/x
  3. Step 3: Cross multiply
    12,623.12x = 18,934.68 × 3,389.84
  4. Step 4: Simplify right side
    12,623.12x = 64,185,535.65
  5. Step 5: Solve for x
    x = 64,185,535.65/12,623.12
  6. Step 6: Final answer
    x = 5,084.76

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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.