Home / 12,416.26-18,620.72-3,649.08

Finding the Fourth Proportional to 12,416.26, 18,620.72 and 3,649.08

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Solution

The fourth proportional to 12,416.26, 18,620.72 and 3,649.08 is: 5,472.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,416.26 : 18,620.72 = 3,649.08 : x
  2. Step 2: Convert to fraction form
    12,416.26/18,620.72 = 3,649.08/x
  3. Step 3: Cross multiply
    12,416.26x = 18,620.72 × 3,649.08
  4. Step 4: Simplify right side
    12,416.26x = 67,948,496.94
  5. Step 5: Solve for x
    x = 67,948,496.94/12,416.26
  6. Step 6: Final answer
    x = 5,472.54

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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.