Home / 12,324.14-18,486.21-3,090.14

Finding the Fourth Proportional to 12,324.14, 18,486.21 and 3,090.14

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Solution

The fourth proportional to 12,324.14, 18,486.21 and 3,090.14 is: 4,635.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,324.14 : 18,486.21 = 3,090.14 : x
  2. Step 2: Convert to fraction form
    12,324.14/18,486.21 = 3,090.14/x
  3. Step 3: Cross multiply
    12,324.14x = 18,486.21 × 3,090.14
  4. Step 4: Simplify right side
    12,324.14x = 57,124,976.97
  5. Step 5: Solve for x
    x = 57,124,976.97/12,324.14
  6. Step 6: Final answer
    x = 4,635.21

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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.