Home / 12,958.60-19,440.72-4,194.40

Finding the Fourth Proportional to 12,958.60, 19,440.72 and 4,194.40

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Solution

The fourth proportional to 12,958.60, 19,440.72 and 4,194.40 is: 6,292.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,958.60 : 19,440.72 = 4,194.40 : x
  2. Step 2: Convert to fraction form
    12,958.60/19,440.72 = 4,194.40/x
  3. Step 3: Cross multiply
    12,958.60x = 19,440.72 × 4,194.40
  4. Step 4: Simplify right side
    12,958.60x = 81,542,155.97
  5. Step 5: Solve for x
    x = 81,542,155.97/12,958.60
  6. Step 6: Final answer
    x = 6,292.51

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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.