Home / 12,055.48-18,083.22-3,290.20

Finding the Fourth Proportional to 12,055.48, 18,083.22 and 3,290.20

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Solution

The fourth proportional to 12,055.48, 18,083.22 and 3,290.20 is: 4,935.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,055.48 : 18,083.22 = 3,290.20 : x
  2. Step 2: Convert to fraction form
    12,055.48/18,083.22 = 3,290.20/x
  3. Step 3: Cross multiply
    12,055.48x = 18,083.22 × 3,290.20
  4. Step 4: Simplify right side
    12,055.48x = 59,497,410.44
  5. Step 5: Solve for x
    x = 59,497,410.44/12,055.48
  6. Step 6: Final answer
    x = 4,935.30

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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.