Home / 12,486.03-18,724.43-5,086.49

Finding the Fourth Proportional to 12,486.03, 18,724.43 and 5,086.49

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Solution

The fourth proportional to 12,486.03, 18,724.43 and 5,086.49 is: 7,627.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,486.03 : 18,724.43 = 5,086.49 : x
  2. Step 2: Convert to fraction form
    12,486.03/18,724.43 = 5,086.49/x
  3. Step 3: Cross multiply
    12,486.03x = 18,724.43 × 5,086.49
  4. Step 4: Simplify right side
    12,486.03x = 95,241,506.90
  5. Step 5: Solve for x
    x = 95,241,506.90/12,486.03
  6. Step 6: Final answer
    x = 7,627.85

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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.