Home / 12,191.41-18,288.45-4,794.88

Finding the Fourth Proportional to 12,191.41, 18,288.45 and 4,794.88

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Solution

The fourth proportional to 12,191.41, 18,288.45 and 4,794.88 is: 7,192.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191.41 : 18,288.45 = 4,794.88 : x
  2. Step 2: Convert to fraction form
    12,191.41/18,288.45 = 4,794.88/x
  3. Step 3: Cross multiply
    12,191.41x = 18,288.45 × 4,794.88
  4. Step 4: Simplify right side
    12,191.41x = 87,690,923.14
  5. Step 5: Solve for x
    x = 87,690,923.14/12,191.41
  6. Step 6: Final answer
    x = 7,192.85

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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.