Home / 12,240.68-18,359.26-3,919.62

Finding the Fourth Proportional to 12,240.68, 18,359.26 and 3,919.62

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Solution

The fourth proportional to 12,240.68, 18,359.26 and 3,919.62 is: 5,878.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240.68 : 18,359.26 = 3,919.62 : x
  2. Step 2: Convert to fraction form
    12,240.68/18,359.26 = 3,919.62/x
  3. Step 3: Cross multiply
    12,240.68x = 18,359.26 × 3,919.62
  4. Step 4: Simplify right side
    12,240.68x = 71,961,322.68
  5. Step 5: Solve for x
    x = 71,961,322.68/12,240.68
  6. Step 6: Final answer
    x = 5,878.87

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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.