Home / 12,909.60-19,364.40-4,144.68

Finding the Fourth Proportional to 12,909.60, 19,364.40 and 4,144.68

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Solution

The fourth proportional to 12,909.60, 19,364.40 and 4,144.68 is: 6,217.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,909.60 : 19,364.40 = 4,144.68 : x
  2. Step 2: Convert to fraction form
    12,909.60/19,364.40 = 4,144.68/x
  3. Step 3: Cross multiply
    12,909.60x = 19,364.40 × 4,144.68
  4. Step 4: Simplify right side
    12,909.60x = 80,259,241.39
  5. Step 5: Solve for x
    x = 80,259,241.39/12,909.60
  6. Step 6: Final answer
    x = 6,217.02

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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.