Home / 12,514.96-18,771.16-3,280.96

Finding the Fourth Proportional to 12,514.96, 18,771.16 and 3,280.96

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Solution

The fourth proportional to 12,514.96, 18,771.16 and 3,280.96 is: 4,921.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,514.96 : 18,771.16 = 3,280.96 : x
  2. Step 2: Convert to fraction form
    12,514.96/18,771.16 = 3,280.96/x
  3. Step 3: Cross multiply
    12,514.96x = 18,771.16 × 3,280.96
  4. Step 4: Simplify right side
    12,514.96x = 61,587,425.11
  5. Step 5: Solve for x
    x = 61,587,425.11/12,514.96
  6. Step 6: Final answer
    x = 4,921.10

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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.