Home / 12,385.44-18,578.16-5,367.60

Finding the Fourth Proportional to 12,385.44, 18,578.16 and 5,367.60

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Solution

The fourth proportional to 12,385.44, 18,578.16 and 5,367.60 is: 8,051.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,385.44 : 18,578.16 = 5,367.60 : x
  2. Step 2: Convert to fraction form
    12,385.44/18,578.16 = 5,367.60/x
  3. Step 3: Cross multiply
    12,385.44x = 18,578.16 × 5,367.60
  4. Step 4: Simplify right side
    12,385.44x = 99,720,131.62
  5. Step 5: Solve for x
    x = 99,720,131.62/12,385.44
  6. Step 6: Final answer
    x = 8,051.40

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Double scale
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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.