Home / 12,591.80-18,883.68-4,156.43

Finding the Fourth Proportional to 12,591.80, 18,883.68 and 4,156.43

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Solution

The fourth proportional to 12,591.80, 18,883.68 and 4,156.43 is: 6,233.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,591.80 : 18,883.68 = 4,156.43 : x
  2. Step 2: Convert to fraction form
    12,591.80/18,883.68 = 4,156.43/x
  3. Step 3: Cross multiply
    12,591.80x = 18,883.68 × 4,156.43
  4. Step 4: Simplify right side
    12,591.80x = 78,488,713.66
  5. Step 5: Solve for x
    x = 78,488,713.66/12,591.80
  6. Step 6: Final answer
    x = 6,233.32

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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.