Home / 12,206.65-18,311.42-3,883.75

Finding the Fourth Proportional to 12,206.65, 18,311.42 and 3,883.75

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Solution

The fourth proportional to 12,206.65, 18,311.42 and 3,883.75 is: 5,826.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,206.65 : 18,311.42 = 3,883.75 : x
  2. Step 2: Convert to fraction form
    12,206.65/18,311.42 = 3,883.75/x
  3. Step 3: Cross multiply
    12,206.65x = 18,311.42 × 3,883.75
  4. Step 4: Simplify right side
    12,206.65x = 71,116,919.51
  5. Step 5: Solve for x
    x = 71,116,919.51/12,206.65
  6. Step 6: Final answer
    x = 5,826.08

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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.