Home / 12,327.91-18,480.87-5,745.04

Finding the Fourth Proportional to 12,327.91, 18,480.87 and 5,745.04

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Solution

The fourth proportional to 12,327.91, 18,480.87 and 5,745.04 is: 8,612.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,327.91 : 18,480.87 = 5,745.04 : x
  2. Step 2: Convert to fraction form
    12,327.91/18,480.87 = 5,745.04/x
  3. Step 3: Cross multiply
    12,327.91x = 18,480.87 × 5,745.04
  4. Step 4: Simplify right side
    12,327.91x = 106,173,337.38
  5. Step 5: Solve for x
    x = 106,173,337.38/12,327.91
  6. Step 6: Final answer
    x = 8,612.44

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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.