Home / 12,549.60-18,827.10-3,783.78

Finding the Fourth Proportional to 12,549.60, 18,827.10 and 3,783.78

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Solution

The fourth proportional to 12,549.60, 18,827.10 and 3,783.78 is: 5,676.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,549.60 : 18,827.10 = 3,783.78 : x
  2. Step 2: Convert to fraction form
    12,549.60/18,827.10 = 3,783.78/x
  3. Step 3: Cross multiply
    12,549.60x = 18,827.10 × 3,783.78
  4. Step 4: Simplify right side
    12,549.60x = 71,237,604.44
  5. Step 5: Solve for x
    x = 71,237,604.44/12,549.60
  6. Step 6: Final answer
    x = 5,676.48

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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.