Home / 12,447.15-18,670.74-3,682.72

Finding the Fourth Proportional to 12,447.15, 18,670.74 and 3,682.72

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Solution

The fourth proportional to 12,447.15, 18,670.74 and 3,682.72 is: 5,524.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,447.15 : 18,670.74 = 3,682.72 : x
  2. Step 2: Convert to fraction form
    12,447.15/18,670.74 = 3,682.72/x
  3. Step 3: Cross multiply
    12,447.15x = 18,670.74 × 3,682.72
  4. Step 4: Simplify right side
    12,447.15x = 68,759,107.61
  5. Step 5: Solve for x
    x = 68,759,107.61/12,447.15
  6. Step 6: Final answer
    x = 5,524.08

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Similar ratio
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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.