Home / 12,134.32-18,201.49-3,815.06

Finding the Fourth Proportional to 12,134.32, 18,201.49 and 3,815.06

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Solution

The fourth proportional to 12,134.32, 18,201.49 and 3,815.06 is: 5,722.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,134.32 : 18,201.49 = 3,815.06 : x
  2. Step 2: Convert to fraction form
    12,134.32/18,201.49 = 3,815.06/x
  3. Step 3: Cross multiply
    12,134.32x = 18,201.49 × 3,815.06
  4. Step 4: Simplify right side
    12,134.32x = 69,439,757.36
  5. Step 5: Solve for x
    x = 69,439,757.36/12,134.32
  6. Step 6: Final answer
    x = 5,722.59

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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.