Home / 13,745.78-20,618.66-4,867.62

Finding the Fourth Proportional to 13,745.78, 20,618.66 and 4,867.62

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Solution

The fourth proportional to 13,745.78, 20,618.66 and 4,867.62 is: 7,301.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,745.78 : 20,618.66 = 4,867.62 : x
  2. Step 2: Convert to fraction form
    13,745.78/20,618.66 = 4,867.62/x
  3. Step 3: Cross multiply
    13,745.78x = 20,618.66 × 4,867.62
  4. Step 4: Simplify right side
    13,745.78x = 100,363,801.79
  5. Step 5: Solve for x
    x = 100,363,801.79/13,745.78
  6. Step 6: Final answer
    x = 7,301.43

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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.