Home / 12,113.26-18,169.89-4,320.25

Finding the Fourth Proportional to 12,113.26, 18,169.89 and 4,320.25

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Solution

The fourth proportional to 12,113.26, 18,169.89 and 4,320.25 is: 6,480.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,113.26 : 18,169.89 = 4,320.25 : x
  2. Step 2: Convert to fraction form
    12,113.26/18,169.89 = 4,320.25/x
  3. Step 3: Cross multiply
    12,113.26x = 18,169.89 × 4,320.25
  4. Step 4: Simplify right side
    12,113.26x = 78,498,467.27
  5. Step 5: Solve for x
    x = 78,498,467.27/12,113.26
  6. Step 6: Final answer
    x = 6,480.38

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Similar ratio
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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.