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Finding the Fourth Proportional to 12,625.74, 18,941.04 and 4,305.42

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Solution

The fourth proportional to 12,625.74, 18,941.04 and 4,305.42 is: 6,458.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,625.74 : 18,941.04 = 4,305.42 : x
  2. Step 2: Convert to fraction form
    12,625.74/18,941.04 = 4,305.42/x
  3. Step 3: Cross multiply
    12,625.74x = 18,941.04 × 4,305.42
  4. Step 4: Simplify right side
    12,625.74x = 81,549,132.44
  5. Step 5: Solve for x
    x = 81,549,132.44/12,625.74
  6. Step 6: Final answer
    x = 6,458.96

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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.