Home / 12,416.25-18,620.73-3,649.08

Finding the Fourth Proportional to 12,416.25, 18,620.73 and 3,649.08

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Solution

The fourth proportional to 12,416.25, 18,620.73 and 3,649.08 is: 5,472.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,416.25 : 18,620.73 = 3,649.08 : x
  2. Step 2: Convert to fraction form
    12,416.25/18,620.73 = 3,649.08/x
  3. Step 3: Cross multiply
    12,416.25x = 18,620.73 × 3,649.08
  4. Step 4: Simplify right side
    12,416.25x = 67,948,533.43
  5. Step 5: Solve for x
    x = 67,948,533.43/12,416.25
  6. Step 6: Final answer
    x = 5,472.55

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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.