Home / 12,548.38-18,822.48-3,188.44

Finding the Fourth Proportional to 12,548.38, 18,822.48 and 3,188.44

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Solution

The fourth proportional to 12,548.38, 18,822.48 and 3,188.44 is: 4,782.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,548.38 : 18,822.48 = 3,188.44 : x
  2. Step 2: Convert to fraction form
    12,548.38/18,822.48 = 3,188.44/x
  3. Step 3: Cross multiply
    12,548.38x = 18,822.48 × 3,188.44
  4. Step 4: Simplify right side
    12,548.38x = 60,014,348.13
  5. Step 5: Solve for x
    x = 60,014,348.13/12,548.38
  6. Step 6: Final answer
    x = 4,782.64

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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.